Cats Hostel San Sebastian

About the hotel

Stylish Rooms and Communal Terrace

Koisi Hostel, located in the vibrant El Antiguo district of San Sebastián, offers stylish air-conditioned rooms with free WiFi. The dormitory rooms feature capsule bunk beds and nightlights, while some rooms include a private bathroom with a shower. Bed linen is provided for your comfort.

Bar and Restaurant with Traditional Pintxos

Guests can unwind in the communal lounge or on the glass rooftop terrace, where the bar and restaurant serve traditional pintxos and a variety of homemade meals, including vegetarian options. The perfect spot to savor local flavors and socialize with fellow travelers.

Convenient Facilities and Nearby Attractions

Enjoy 24-hour front desk service, tour organization, and touristic advice at the property. Explore El Antiguo district's shops and bars, indulge in surfing, cultural activities, and gastronomic delights. Don't miss visiting La Concha beach and El Peine del Viento nearby.

Experience the best of San Sebastián at Koisi Hostel - Book your stay now!

Facilities

• Free WiFi
• Non-smoking rooms
• Air conditioning
• 24-hour front desk
• Heating
• Terrace
• Family rooms
• Lift / Elevator
• Laundry
• Express check-in/check-out
• Bar
• Fax/photocopying
• Tour desk
• Soundproof rooms
• Facilities for disabled guests
• Packed lunches
• Non-smoking throughout
• Sun terrace
• Shared lounge/TV area
• Concierge service
• Snack bar
• Lockers
• Indoor play area
• Baby safety gates
• Outdoor furniture
• Wine/champagne
• Guest rooms disinfected between stays
• Cleaning standards that are effective against Coronavirus
• Physical distancing rules followed
• Cashless payment available

Check-in and check-out

Check-out

until 11:00

Guest reviews

• S

  SonyaUnited Kingdom

  8

  A modern youth hostel in a nice part of town

  Liked: A great location in a more authentic part of town - the bars nearby flow out onto the street with local young people, and a short walk up the hill from the bay

  Disliked: Could do with an additional washing machine and drier and better kitchen facilities - only a microwave!

  Posted in October 2026

• N

  NdubuisiNigeria

  5

  It is okay at some point

  Liked: Bathroom

  Disliked: Free breakfast would have been better

  Posted in October 2026

• V

  ValerijaFrance

  9

  Liked: The hostel is clean and comfortable. Ee had a family room and in was perfect for a family - there was a big bed and bunk beds in there. I have an impression that family rooms are somehow separated from the bigger ones, because there was no noise. Special thank you to the staff - both male and female receptionists we met were very attentive and kind, and tried to help us with whatever problems we have had. Travelling with kids, that’s much appreciated. The neighbourhood is calm and it’s easy to park the car outside.

  Posted in October 2026

• J

  JanisLatvia · Couple

  9

  Nice

  Liked: Nice Fesh hostel. Ok breakfast.

  Posted in October 2026

• R

  RichardUnited Kingdom

  8

  Liked: Cheap, clean, and friendly

  Disliked: Up a big hill

  Posted in October 2026

• S

  StuartUnited Kingdom

  10

  Perfect

  Liked: Clean and smart

  Disliked: Nothing

  Posted in October 2026

Reviews in English from guests who stayed at the hotel, provided by our booking partner.

Good to know

For group bookings, please contact groups@catshostels.com. Please note that we reserve the right to cancel bookings for more than 10 beds or more than 2 rooms.

Guests under 18 years of age are not permitted in shared rooms.

Towels are only provided in private rooms and can be rented in shared rooms.

If you are travelling with family or friends, we will do our best to arrange for everyone to stay in the same room, but we cannot guarantee this. If you wish to ensure everyone stays together, we recommend booking a private room or an entire shared room

Cats Hostel reserves the right to refuse admission to any man who has booked a room in a female dormitory.

Smoking on site will incur an additional charge of EUR 50.Guests are required to show a photo ID and credit card upon check-in. Please note that all Special Requests are subject to availability and additional charges may apply.

Guests under the age of 18 can only check in with a parent or official guardian.

A deposit may be required at the property.