Travelling to Japan? Read all updated requirements before you book.
Chillulu Coffee & Hostel
20 Share Mixed Dormitory - Public areas, Chillulu Coffee & Hostel in Yokohama
a neon sign hanging from the side of a building, Chillulu Coffee & Hostel in Yokohama
a man standing in front of a counter in a restaurant, Chillulu Coffee & Hostel in Yokohama
a chalkboard with graffiti on it, Chillulu Coffee & Hostel in Yokohama
Interior view, Chillulu Coffee & Hostel in Yokohama
a newspaper advertisement for a new york city, Chillulu Coffee & Hostel in Yokohama

Removed from saved list

8.6

Excellent

155 reviews

155 reviews

Housekeeping2
See map
See map

9.1

Exceptional

Location rating score

Exceptional location - Inside city center
Exceptional for walking
Walkable places
Cashew Store

60 m

KouMen

60 m

Tencho Mon Gate

60 m

Gofuku Jushinten

60 m

CAYHANE

70 m

Popular landmarks
Yamashita Park

410 m

Osanbashi Yokohama International Passenger Terminal

840 m

Yokohama Red Brick Warehouse

1.2 km

Cup Noodles Museum Yokohama

1.6 km

Yokohama Landmark Tower

1.9 km

Closest landmarks
Goku1

90 m

Egaohenshin Photography

90 m

Ma Zhu Miao

90 m

Yokohama Daisekai - DASKA

90 m

Masobyo Temple

100 m

Chillulu Coffee & Hostel

188-12, Yamashita-cho (2nd floor), Yokohama, Yokohama, Japan, 231 0023 - See map

Get your trip off to a great start with a stay at this property, which offers free Wi-Fi in all rooms. Strategically situated in Yokohama, allowing you access and proximity to local attractions and sights. Don't leave before paying a visit to the famous Yokohama Chinatown. As an added bonus, restaurant is provided on-site to conveniently serve your needs.

Highlights

320 meters to public transportation

Inside city center

80 meters to Yokohama Chinatown

Free Wi-Fi in all rooms!

Air conditioning

Hygiene Plus

This property has self-selected and self-certified the following hygiene measures.Learn more
Safety Features
Staff trained in safety protocol
See all amenities
Preventative Equipment
Hand sanitizer
Sterilizing equipment
Health and Medical
First aid kit
Doctor/nurse on call

Facilities

Free Wi-Fi in all rooms!

Luggage storage

Check-in/out [private]

Coffee shop

Laundry service

Restaurants

Safety deposit boxes

Wi-Fi in public areas

Your dates are popular among travelersPopular destination! Properties in Yokohama are being booked every minute!
Value for money8.6
Distance to city center0km
Location rating9.1
Nearest airportHaneda Airport (HND)
Distance to airport16.9 km

Rooms available at Chillulu Coffee & Hostel

20 Share Mixed Dormitory
...
  • Room size: 50 m²/538 ft²
  • Non-smoking
  • 10 bunk beds
Enter dates to see prices
Bunk Bed in Mixed Dormitory Room
...
  • Room size: 69 m²/743 ft²
  • Shower
  • 1 bunk bed
Enter dates to see prices
Dormitory
...
  • Room size: 76 m²/818 ft²
  • Shower
  • 1 bunk bed or 10 bunk beds
Enter dates to see prices
Standard Room
...
    Enter dates to see prices
    Dormitory(Shared Facilities)
    ...
      Enter dates to see prices
      SINGLE ROOM SHARED ROOM
      ...
        Enter dates to see prices
        Shared Dormitory, Mixed Dorm
        ...
          Enter dates to see prices
          Shared room (Dormitory) - Mixed
          ...
            Enter dates to see prices
            Standard Room (No Window)
            ...
              Enter dates to see prices
              SHARED ROOM TWIN BUNK BED
              ...
                Enter dates to see prices

                Frequently asked questions

                What time is check-in and check-out at Chillulu Coffee & Hostel?

                Check-in is from 03:00 PM, and check-out is until 11:00 AM. You may request early check-in or late check-out during booking, subject to availability. Guests checking in or out before or after the designated periods may be charged an additional fee. The hostel offers luggage storage to guests for before check-in and after check-out.

                How do I get to Chillulu Coffee & Hostel?

                For those who wish to drive their own cars, Chillulu Coffee & Hostel has a car park that's close to the hostel. Parking is available for an additional charge.

                What is the smoking policy at Chillulu Coffee & Hostel?

                Chillulu Coffee & Hostel does not permit smoking in any of its rooms or indoor areas.

                What is the closest train, metro, or bus station to Chillulu Coffee & Hostel?

                Motomachi Chukagai Train Station is the closest train, metro, or bus station, about 310 m away from Chillulu Coffee & Hostel.

                What restaurants are nearby Chillulu Coffee & Hostel?

                Chillulu Coffee & Hostel is located in Yokohama, famous for good restaurants such as Yoshimuraya, bills and Hungry Tiger.

                What popular shopping places are close to Chillulu Coffee & Hostel?

                Chillulu Coffee & Hostel is located in Yokohama area which features shopping places such as Yokohama Motomachi Shopping Street, Yokohama World Porters and MARK IS Minatomirai.

                What are popular attractions near Chillulu Coffee & Hostel?

                Chillulu Coffee & Hostel is located in Yokohama area, which is famous for attractions such as Yokohama Chinatown, Yokohama Red Brick Warehouse and Yokohama Minato Mirai 21.

                What popular natural sightseeing spots are close to Chillulu Coffee & Hostel?

                Chillulu Coffee & Hostel is located in the Yokohama area, which is famous for natural sightseeing destinations such as sleep, Yokohama Pool Center and Tokyo Strawberry Park.

                See map

                Explore the neighborhood

                What people love about Chillulu Coffee & Hostel

                • 9.2

                  Exceptional
                  Cleanliness

                  "Hostel facilities and amenities provided are very clean and well-maintained."

                  Karine

                  |

                  May 31, 2019

                • 10

                  Exceptional
                  Location

                  "Located the heart of Yokohama Chinatown, the place is cool with chill vibes."

                  Jerry

                  |

                  September 12, 2022

                • 9.6

                  Exceptional
                  Location

                  "Great strategic point for exploring the city."

                  Małgorzata

                  |

                  April 16, 2021

                Property ranking|Compared to 411 Yokohama properties
                See all rankings
                Couples review score
                10/10
                Value for money score
                8.6/10
                Room size
                50 sqm.
                Location score
                9.1/10
                Better than
                99
                %
                of Yokohama properties
                Better than
                96
                %
                of Yokohama properties
                Bigger than
                96
                %
                of Yokohama properties
                Better than
                95
                %
                of Yokohama properties
                Overall rating:

                8.6

                Excellent
                155 reviews
                Cleanliness
                8.6
                Facilities
                7.9
                Location
                9.1
                Read all reviews >
                More about Chillulu Coffee & Hostel

                More about Chillulu Coffee & Hostel

                Chillulu Coffee & Hostel

                Immerse yourself in the all that Yokohama has to offer with a getaway at Chillulu Coffee & Hostel.
                Chillulu Coffee & Hostel offers impeccable service and all the essential amenities to travelers. Keep up with all your communications easily with the hostel's free Wi-Fi. Guests can enjoy convenient available parking right at the hostel. Front desk service is provided at the hostel including luggage storage.
                Packing light is possible at Chillulu Coffee & Hostel thanks to the hostel's laundromat and laundry service keeping your clothes clean. Feeling lazy? In-room conveniences like daily housekeeping let you get the most out of your room time. For the comfort and health of all guests, smoking is not permitted anywhere within the hostel.
                Designed for comfort, all guestrooms offer a range of amenities to ensure a restful night. For your comfort, some rooms at the hostel are equipped with linen service and air conditioning. In some select rooms, you can find a refrigerator at your disposal. Chillulu Coffee & Hostel also provides toiletries in some of its bathrooms for your convenience.


                Dining and things to do

                Enjoy the morning bliss with a sip of good coffee at the cafe located in the hostel. A variety of convenient and tasty dining options are waiting for you at the hostel, for whenever you get hungry. Do you prefer to cook your own meals? Then you'll love the in-house shared kitchen.
                Chillulu Coffee & Hostel offers wonderful recreational facilities for guests to enjoy. Get social at the hostel's shared lounge and TV area, where you can meet other guests.


                Around the property

                Experience all the sights and local attractions of Yokohama with Chillulu Coffee & Hostel as your base. Don't forget to stop by Yokohama Red Brick Warehouse located 1.1 km away, where everyone who visits Yokohama wants to have their photo taken. Acquire some cultural knowledge with a day at Cup Noodles Museum Yokohama located 1.5 km away, where you can see famous works by local artists.


                Reasons to stay here

                Get more than you bargain for here, which scores value for money higher than 95% of the city's accommodation.
                Ranking higher than 94% of the city's accommodations options, this is a great choice for location.
                Staff and service here are considered high quality by past guests whose ratings put it above 93% of the city's options.

                Show less

                Amenities and facilities

                Very good
                Facilities

                7.9

                Languages spoken
                • English
                • Chinese [Mandarin]
                • Japanese
                • Spanish
                Internet access
                • Free Wi-Fi in all rooms!
                • Internet services
                • Wi-Fi in public areas
                Things to do, ways to relax
                • Garden
                Cleanliness and safety
                • Anti-viral cleaning products
                • Body thermometer
                • Cashless payment service
                • Daily disinfection in all rooms
                • Daily disinfection in common areas
                • Doctor/nurse on call
                • First aid kit
                • Hand sanitizer
                • Hot water linen and laundry washing
                • Physical distancing of at least 1 meter
                • Protective screens in common areas
                • Rooms sanitized between stays
                • Staff trained in safety protocol
                • Sterilizing equipment
                • Temperature check for guests and staff
                Dining, drinking, and snacking
                • Coffee shop
                • Kitchen
                • Restaurants
                • Shared kitchen
                Services and conveniences
                • Air conditioning in public area
                • Contactless check-in/out
                • Daily housekeeping
                • Elevator
                • Facilities for disabled guests
                • Food delivery
                • Heating in public area
                • Laundromat
                • Laundry service
                • Luggage storage
                • Postal service
                • Safety deposit boxes
                • Smoke-free property
                • Smoking area
                Access
                • Adult-only property
                • CCTV in common areas
                • CCTV outside property
                • Check-in/out [private]
                • Fire extinguisher
                • Non-smoking rooms
                • Pets allowed
                • Safety/security feature
                • Security [24-hour]
                • Smoke alarms
                Getting around
                • Car park [charges apply]
                • Car park [nearby]
                Available in all rooms
                • Air conditioning
                • Clothes dryer
                • Fire extinguisher
                • Free bottled water
                • Free welcome drink
                • Heating
                • Internet access – wireless
                • Kitchenette
                • Laptop safe box
                • Laptop workspace
                • Linens
                • Locker
                • Microwave
                • Mirror
                • Non-smoking
                • Refrigerator
                • Shower
                • Toiletries
                • Washing machine
                • Wi-Fi [free]

                Food and dining

                Restaurants on site
                CHILLULU COFFEE
                • Menu: Buffet

                Location

                188-12, Yamashita-cho (2nd floor), Yokohama, Yokohama, Japan, 231 0023
                Exceptional
                Location

                9.1

                Airports
                • Haneda Airport (HND)
                  16.9 km
                • Narita International Airport (NRT)
                  76.7 km
                Public transportation
                • Motomachi Chukagai Train Station
                  310 m
                • Ishikawachō Station
                  590 m
                Hospital or clinic
                • The Bluff Clinic
                  750 m
                Shopping
                • Yokohama Motomachi Shopping Street
                  380 m
                Convenience store
                • Lawson
                  320 m
                Cash withdrawal
                • ATM
                  140 m

                What's nearby

                Popular landmarks
                • Yokohama Chinatown
                  80 m
                • Yamashita Park
                  410 m
                • Osanbashi Yokohama International Passenger Terminal
                  840 m
                • Yokohama Red Brick Warehouse
                  1.2 km
                • Cup Noodles Museum Yokohama
                  1.6 km
                • Yokohama Landmark Tower
                  1.9 km
                • Yokohama Minato Mirai 21
                  2.1 km
                • Sankeien Gardens
                  3.0 km
                • Shin-Yokohama Ramen Museum
                  8.0 km
                • Yokohama Hakkeijima Sea Paradise
                  11.7 km
                Nearby landmarks
                • Cashew Store
                  60 m
                • KouMen
                  60 m
                • Tencho Mon Gate
                  60 m
                • Gofuku Jushinten
                  60 m
                • CAYHANE
                  70 m
                • Edosei main store
                  80 m
                • Edosei Chinatown Boulevard store
                  80 m
                • Ichibadorimon
                  80 m
                • Yokohama Chinatown
                  80 m
                • Suikouen
                  80 m
                Distances shown are straight-line distances on the map. Actual travel distances may vary.

                Property policies

                Children and extra beds

                Extra beds are dependent on the room you choose. Please check the individual room capacity for more details.

                Minimum age of guests is: 18 year(s).

                Others
                • When booking more than 5 rooms, different policies and additional supplements may apply.

                Some helpful facts

                Check-in/Check-out
                • Check-in from15:00
                • Check-in until20:00
                • Check-out until11:00
                • Reception open until20:00
                Getting around
                • Distance from city center0km
                • Travel time to airport (minutes)50
                Extras
                • Daily Internet/Wi-Fi fee0 JPY
                The property
                • Non-smoking rooms/floorsno
                • Number of floors2
                • Number of rooms 1
                • Room voltage100
                • Year property opened2015

                Reviews of Chillulu Coffee & Hostel from real guests

                Provided by verified guests of Agoda
                8.6
                /
                10
                Cleanliness8.6
                Facilities7.9
                Location9.1
                Service9.0
                Value for money8.6
                High score for Yokohama
                Rating
                9+ Exceptional (36)
                8-9 Excellent (8)
                7-8 Very Good (9)
                6-7 Good (2)
                <6 Below Expectation (5)
                Time of the year
                Mar - May (16)
                Jun - Aug (8)
                Sep - Nov (21)
                Dec - Feb (15)
                All guests (155)
                All languages

                Show reviews that mention 

                Showing 60 verified guest comments
                123
                10.0
                Exceptional
                ENG from Malaysia
                Solo traveler
                20 Share Mixed Dormitory
                Stayed 1 night in December 2019

                Great and valuable stay”

                The hostel is located in the Chinatown, good location. Towel is not provided, but they give a coupon for free drink in cafe upon check in, which is better service. The lounge is quite small, but you can have a drink and chat in the cafe. The kitchen has oven and microwave, but no hot water. A good sleep, maybe only me and another guest in the hostel. The neighborhood is not noisy, because shops closed. Overall, it's a good atmosphere to stay.

                Reviewed December 23, 2019

                See room deals

                9.2
                Exceptional
                Karine from Singapore
                Solo traveler
                20 Share Mixed Dormitory
                Stayed 1 night in May 2019

                Everything is good, except that it is mixed gender Hostel”

                Location was quite near to Motomachi Chugakai Station. Just walk out from Exit 2 and the walking distance is shorter, takes within 5 mins to reach. Cafe staff are very very friendly and nice, good service. Hostel facilities and amenities provided are very clean and well-maintained. Coin Laundry and kitchen amenities also available. Everything is good, but the cons of this Hostel is that it's a mixed dormitory room so for some ladies, maybe might not feel comfortable due to insufficient privacy. Hostel room space is also very small and limited. Many of the guest staying there mostly are Japanese men and there were only a few ladies including me during my stay. Furthermore, the weirdest thing I found out was that I'm actually the youngest of the guest staying Thankfully it was only for 1 night. there. Many people who came were either housewives or working employees in their mid 30s-40s age. No youngsters I've seen at during my stay there ~

                Reviewed May 31, 2019

                See room deals

                9.6
                Exceptional
                barry from United States
                Solo traveler
                20 Share Mixed Dormitory
                Stayed 2 nights in December 2019

                Chinatown, Yokohama”

                In the middle of Chinatown and maybe 3 blocks from the port of Yokohama! The 1st floor's a restaurant/coffee shop w/outdoor seating. Upstairs is the capsule style hostel and a little sitting room by the front window. Wifi can be spotty if the hostel is full so go downstairs and mingle. Strong water pressure and lots of hot water. Frig, microwave on the 2nd floor. The staff's super nice. Yuka was especially kind and friendly.

                Reviewed December 23, 2019

                See room deals

                9.6
                Exceptional
                Małgorzata from Japan
                Solo traveler
                20 Share Mixed Dormitory
                Stayed 2 nights in April 2021

                Great localization & delicious morning coffee.”

                Very nice and helpful staff. Great strategic point for exploring the city. Chinatown is just around the corner for a nice dinner after a long day. Morning latte was just a cherry on the top !

                Reviewed April 17, 2021

                See room deals

                9.2
                Exceptional
                edward from Canada
                Solo traveler
                20 Share Mixed Dormitory
                Stayed 1 night in April 2019

                Exceptional”

                Very friendly and helpful staff

                Reviewed April 30, 2019

                See room deals

                10.0
                Exceptional
                Peter from Japan
                Solo traveler
                20 Share Mixed Dormitory
                Stayed 4 nights in May 2017

                Best Hostel. Friendliest Staff.”

                When I stayed at CHILLULU, I was greeted by the most warmhearted staff who went beyond their duties to ensure I had the most comfortable stay. The experience of staying at CHILLULU is really like nothing else. The model of a Cafe and Hostel in-one really works. It means you can take your coffee from the place you're staying at (how good is that!?). They even give you one free coffee for your stay! As good as the cafe and coffee is, the friendly, open and warmhearted staff is really the key to making your stay more than average. I'll always remember CHILLULU, the hostel/cafe and it's friendly staff, the good times and the new people I met. Thank you CHILLULU for the best Hostel experience I ever had!

                Reviewed September 09, 2017

                See room deals

                10.0
                Exceptional
                Yolanda from Singapore
                Solo traveler
                20 Share Mixed Dormitory
                Stayed 1 night in December 2017

                Comfortable!”

                Among all the hostels ive been thus far, this is the most sociable one yet! Ive made new friends and shared so many stories! This hostel is smacked right in the middle of Chinatown, might be a little noisy for some people. Super convenient if you suddenly crave a snack. First floor is cafe, second floor is hostel. There is only a door opening to a flight of steps leading straight into the bunks, so might not offer the right amount of privacy, but in turn, we know almost everyone in the bunks. I go in alone and out with a friend. Would totally recommend this place to people to just loves to make new friends! Cheers!

                Reviewed December 06, 2017

                See room deals

                9.2
                Exceptional
                wipavee from Thailand
                Solo traveler
                20 Share Mixed Dormitory
                Stayed 1 night in June 2018

                Good location, clean and good coffee”

                Location is good around 10 mins walk from JR. The coffee for welcome drink is awesome. Place is very clean , bed is good but a bit small and there is no towel. In the front, there is Chinese restaurant popular for porridges, you can see people line up in the morning which I recommend you to try.

                Reviewed July 03, 2018

                See room deals

                10.0
                Exceptional
                Hanson from Canada
                Solo traveler
                20 Share Mixed Dormitory
                Stayed 1 night in September 2017

                Exceptional”

                Friendly staff, a little bit of a walk from the station, but is located right in Chinatown. Facilities were very clean and comfortable. Great value for money.

                Reviewed September 12, 2017

                See room deals

                10.0
                Exceptional
                nattha from Thailand
                Solo traveler
                Standard Room
                Stayed 1 night in July 2017

                everything's good”

                everything's good

                Reviewed July 26, 2017

                See room deals

                8.0
                Excellent
                Akimasa from Japan
                Solo traveler
                Bunk Bed in Mixed Dormitory Room
                Stayed 1 night in December 2022

                Convenient ”

                Staff are friendly

                Reviewed December 14, 2022

                See room deals

                2.0
                Anthony from Guernsey
                Business traveler
                Bunk Bed in Mixed Dormitory Room
                Stayed 2 nights in November 2022

                Staff member was racist. Emailed me saying he hates Scottish people which I have proof of.”

                Being xenophobic is the last thing we ever need especially in 2022.

                Reviewed December 03, 2022

                See room deals

                10.0
                Exceptional
                Jerry from Japan
                Solo traveler
                20 Share Mixed Dormitory
                Stayed 1 night in September 2022

                Cute local spot!”

                One of the most pleasant hostels I've visited. Located the heart of Yokohama Chinatown, the place is cool with chill vibes. The host was super friendly! Would definitely visit again. 10/10 would recommend!!!

                Reviewed September 13, 2022

                See room deals

                9.6
                Exceptional
                Bis from Japan
                Solo traveler
                20 Share Mixed Dormitory
                Stayed 1 night in January 2023

                中華街ど真ん中のホステル!”

                春節2023のカウントダウン参加のためにお世話になりました。 会場である横濱媽祖廟まで、徒歩30秒! 室内は綺麗で、小さなリビングからは中華街の通りが一望できます!真向かいは有名な朝粥やさんで、混雑具合を確認してからお店に向かえます!(実際は朝八時過ぎから大行列でした。) スタッフの方は各国のホステル事情にお詳しそうで、日本におけるホステルのさらなる普及に意欲的な方なのではとお見受けいたしました。 男女混合ドミではありますが、領域は分けられており、枕元にはコンセント二つと照明がついています。共有スペースには各ゲスト用の鍵付ロッカー、洗面スペース×3、共有冷蔵庫、電子レンジ×2、シャワールーム×2、トイレ男女各1室、コイン洗濯機、コイン乾燥機…などが用意されてます。一番感動したのは、キッチンに割り箸やインスタントスープなどのほか、各種調味料がひとそろい用意されていたことですね!気が利いてます!!

                Reviewed January 22, 2023

                See room deals

                10.0
                Exceptional
                WING from Hong Kong SAR, China
                Solo traveler
                Bunk Bed in Mixed Dormitory Room
                Stayed 1 night in December 2022

                Exceptional”

                スタッフのおかけで、箱根に来ました。誠にありがとうございます🚌😀

                Reviewed December 21, 2022

                See room deals

                9.2
                Exceptional
                MIYAKE from Japan
                Solo traveler
                Bunk Bed in Mixed Dormitory Room
                Stayed 1 night in November 2022

                中華街ど真ん中”

                便利な立地でし。駅からも近く中華街ど真ん中。 前には朝から開いてるサンタさんのお粥の美味しい店がありました。 時間がなく食べれなかって残念。 次回またな機会、また泊まります。

                Reviewed November 25, 2022

                See room deals

                8.4
                Excellent
                ryusei from Japan
                Solo traveler
                Bunk Bed in Mixed Dormitory Room
                Stayed 1 night in September 2022

                立地がとてもいい”

                歩いて数秒で横浜中華街に行くことができ、抜群の立地です

                Reviewed October 31, 2022

                See room deals

                9.6
                Exceptional
                YUKIKO from Japan
                Solo traveler
                Bunk Bed in Mixed Dormitory Room
                Stayed 2 nights in September 2022

                横浜行く時はリピートしたいです”

                めちゃめちゃ安価なのに、清潔だし中華街にあって便利だし、最寄り駅から5分くらいでめちゃめちゃ近くて満足です! スタッフの方もとても親切で良かったです!またよろしくお願いいたします。ありがとうございました!

                Reviewed October 02, 2022

                See room deals

                勿体無いコメントで恐縮です💦 またお待ちしております。

                Responded October 03, 2022
                Chillulu Coffee & Hostel
                8.8
                Excellent
                Haruka from Japan
                Solo traveler
                Bunk Bed in Mixed Dormitory Room
                Stayed 1 night in October 2022

                予想よりも安心して利用できました”

                ホステル自体を今回初めて利用しました。 セキュリティー面が不安でしたが、 ロッカーに南京錠を付けれるので、 貴重品を安心して保管できました。 マットレスの寝心地が良く、 ネカフェよりは快適に睡眠が取れました。 気になったのは… 共有スペースの狭さとスマホの音。 この2点が気になるようなら、 それなりの設備の施設の検討をお勧め。

                Reviewed October 02, 2022

                See room deals

                ありがとうございます! 実際にご利用した方のアドバイスは、 これからのゲストさんにとても参考になります。 コチラは本当にコンパクトな施設につき、 至らぬ点もあると思いますが、 そんな小さな空間でもゆっくりしてもらえるように日々模索中シテマスッ ありがとうございます。

                Responded October 03, 2022
                Chillulu Coffee & Hostel
                10.0
                Exceptional
                sakura from Japan
                Business traveler
                20 Share Mixed Dormitory
                Stayed 3 nights in September 2022

                ありがとうございました”

                とても親切なスタッフさんで、おすすめのお店も教えていただきました。

                Reviewed September 29, 2022

                See room deals

                ありがとうございますー! コメントに恥じないよう日々精進イタシマスッ

                Responded October 03, 2022
                Chillulu Coffee & Hostel
                123
                This is a popular property. Don't miss out!

                Back to search results

                Back to room choices

                |

                Dismiss