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GRONX Zurriola’s dining room full during the day, with a waitress walking down the aisle and globe lamps

Restaurant in San Sebastián · Gros

Restaurant in San Sebastián, with the kitchen open from 8:00 to 23:00

Basque cooking with local produce, across from the Kursaal: breakfast, lunch and dinner every day, whenever suits you.

Book a table See the menu (in Spanish) (opens in a new tab)

Non-stop kitchen in San SebastiánFifteen hours of cooking, no breaks

  1. Sourdough toast with scrambled eggs and sliced avocado with black sesame and sprouts

    8:00 · Breakfast

    Sourdough, eggs and brunch.

  2. A table sharing the sliced txuleta on its platter, with bread and glasses of beer

    13:00 · Lunch

    The seasonal menu.

  3. Croissants, chocolate napolitanas and sponge cake on a plate, at the bar

    Mid-afternoon · The kitchen is still open

    Back from the beach.

  4. A wooden table for two with two glasses of red wine, in the low evening light

    Until 23:00 · Dinner

    Sundays too.

Restaurant near the KursaalIn Gros, across from the Kursaal

On Zurriola avenue, with a big window that opens onto the Kursaal and the beach five minutes away. The indoor terrace, by the window, is dog-friendly.

On foot from GRONX

  1. Kursaal2 min
  2. Zurriola beach5 min
  3. Boulevard5 min
  4. Old Town9 min
  5. Train station11 min
  6. La Concha12 min
Directions on Google Maps
GRONX’s glass front folded wide open onto Zurriola avenue: the long wooden counter, a palm at the entrance and the tables inside

The glass frontFolded wide open, onto the Zurriola

The glass front folds back and the dining room opens onto the avenue, across from the Kursaal.

Breakfast seen from above: toast with avocado and scrambled eggs, with mushrooms and fried eggs, brioche with banana and raspberries and two white coffees

Breakfast in San SebastiánBreakfast and brunch, until 13:30

Brunch at €26 per person, from 8:00 to 13:30. The coffee is Zabala, roasted in Tolosa.

87Google reviews talk about our breakfasts

See the brunch (in Spanish) (opens in a new tab)

Basque cooking in San SebastiánBasque cooking, with names and places

On our menu, every product says where it comes from.

Our local suppliers

  • A. GoyaTolosa
  • Aroa Artesanos de la TierraGetaria
  • BlaseneaZarautz
  • EkotaloAlkiza
  • Euskal Txerri MaskaradaLekunberri
  • Euskaber eggsZaldibia
  • Katxiña TxakolinaOrio
  • KaikuGipuzkoa farmhouses
  • Despacho de panDonostia
  • Joseba Arguiñano pastryZarautz
  • Aldanondo cheesesIdiazabal
  • R. Zabala ciderAduna
  • Zabala coffeeTolosa

Most ordered

  • Golden croquettes in a black pan

    35reviews mention the “Amona Marijo” croquettes, with Maskarada ham

  • Caramelised baked torrijas with a scoop of vanilla ice cream

    22reviews mention the torrija

  • Sliced txuleta, rare, with flaky salt and its bone, with fries behind

    17reviews mention the txuleta steak

See the menu (in Spanish) (opens in a new tab)

Gluten-free restaurant in San SebastiánFour set menus, one gluten-free and one vegetarian

For the whole table, with half a bottle of wine per person.

Gluten-free Experience

54 € per person

Gluten-free
  1. Pumpkin cream soup
  2. Ceps with a slow-cooked egg on potato foam
  3. Line-caught hake on Pelayo sauce with Espelette pepper
  4. Beef cheeks on parmentier
  5. Cheese cream with red berries

Baratza Experience

54 € per person

vegetarian

  1. Pumpkin cream soup
  2. Corn toast with avocado and ceps
  3. Warm rice noodle salad
  4. Roasted aubergine on chickpea hummus
  5. Chocolate and coconut mousse

Zurriola Experience

54 € per person

  1. Maskarada ham croquette
  2. Txuleta ravioli
  3. Line-caught hake in tempura
  4. Beef cheeks
  5. Cheese cream with red berries

Gronx Experience

66 € per person

  1. Robuchon prawn
  2. Maskarada ham croquette
  3. Ceps with a slow-cooked egg
  4. Slow-cooked cod
  5. A. Goya entrecôte with fries
  6. Baked cheesecake

Gluten-free and vegetarian in San SebastiánGluten-free and vegetarian, on the menu and in the set menus

What is gluten-free according to the allergen chart of our autumn-winter menu, and what is vegetarian. If you have coeliac disease or an allergy, tell us when you book.

Gluten-free

Gluten-free Experience, a full set menu for the table · €54 per person

13 dishes on the menu:

  • GRONX gilda
  • Warm autumn salad
  • Sautéed mushrooms with a 63º egg
  • Roasted aubergine with hummus and hollandaise
  • Roasted aubergine with vegetables and almonds
  • Grilled octopus
  • Wild mushroom risotto with foie gras
  • Black rice with squid and king prawn
  • Rice noodle wok
  • Baked monkfish (for 2)
  • Baked salmon
  • Beef cheeks in sauce
  • Cheese cream with red berries

Gluten-free bread (€4); at breakfast, toast and eggs on gluten-free bread (+€2) and a gluten-free muffin.

Daura beer, gluten-free.

Vegetarian

Baratza Experience, from the vegetable garden and vegetarian · €54 per person

Marked VEG on the menu:

  • Warm autumn salad
  • Roasted aubergine with vegetables and almonds
  • Rice noodle wok
  • Chocolate mousse with red berries

Set menus are for the whole table, but the Baratza and the gluten-free one can be combined with the Zurriola or the Gronx.

See it on the menu (in Spanish) (opens in a new tab)
GRONX’s private dining room: a long wooden table set in front of the wine cellar
The Privée table set: glass terrariums, glasses, esparto placemats and a bottle of cava
The Privée’s wine cellar: metal shelves full of bottles, with the cava on top

Company lunches in San SebastiánA private dining room, among the wines

The Privée: one long table for 10, downstairs, inside the wine cellar. For company lunches and celebrations.

  • A long table for 10, all to yourselves.
  • Inside the wine cellar, with the bottles all around.
  • For the table, the Experiences, from €54 to €66 per person: the Baratza (vegetarian) and the gluten-free one can be combined with the Zurriola or the Gronx.

The Privée can’t be booked online. Our team arranges it by phone or email:

Call +34 943 18 78 57 reservas@gronxzurriola.com
GRONX’s red neon sign with its motto, Gure nortasuna

Gure nortasuna · Our identityA Gros local since 2022

We are Ibon Leunda and Aitziber Jauregi. We opened GRONX in 2022 with the idea behind our gastrotekas in Tolosa, Ordizia and Arrasate: local produce and a kitchen that never closes.

“GRONX” goes back to the eighties, when Gros and Sagüés called themselves the Bronx of Gros.

GRONX in the press

  • Academia Vasca de Gastronomía · 2023

    “A very well set-up gastrobar, pleasant. A good wine cellar.”

  • El Diario Vasco · Food guide · 2023

    “It never closes.”

  • EITB · A bocados · 2022

    Aitziber’s Maskarada pork secreto recipe, on Basque television.

  • Radio Euskadi · 2026

    Live from GRONX during the San Sebastián Film Festival.

Quotes translated from Spanish.

FAQBefore you come

Where can I eat well in San Sebastián at any time?

At GRONX Zurriola, across from the Kursaal (Zurriola Hiribidea, 6): the kitchen is open non-stop from 8:00 to 23:00 every day, with breakfast, lunch and dinner of Basque cooking with local produce.

Are you open for dinner on Sundays?

Yes: we open every day and the kitchen serves until 23:00, Sundays included.

Do you have gluten-free and vegetarian options?

Yes: the Gluten-free Experience and the Baratza Experience, which is vegetarian, at €54 per person; on the menu, 13 gluten-free dishes according to our allergen chart and 4 marked VEG; and gluten-free bread. If you have an allergy or intolerance, tell us when you book.

Until what time is breakfast or brunch served?

Until 13:30. Brunch is €26 per person and includes coffee or tea, fresh orange juice, sourdough toast, pastries, homemade sponge cake, an extra of your choice and yogurt with fruit.

How do I get there from the Old Town or the train station?

We’re across from the Kursaal: 9 minutes on foot from the Old Town, 11 from the train station and 5 from Zurriola beach.

Do you have a space for groups or company lunches?

Yes: the Privée, a private dining room for 10 downstairs, inside the wine cellar. It can’t be booked online: call us on +34 943 18 78 57 or email reservas@gronxzurriola.com.

Can I bring my dog?

Yes: the indoor terrace, by the big window, is dog-friendly.

Do I need to book?

It’s the safest option, especially at lunchtime and at weekends: online or on +34 943 18 78 57. For groups of 8 or more, the booking is a request and is confirmed with a €20 deposit per person.

Is it wheelchair accessible?

Yes: the entrance, the seating and the toilet are adapted.

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