Côte Ouest Thalasso
1930s transatlantic ocean liner — nautical details, industrial-chic restaurant, leather armchair bar, lighthouse in the lobby. Refined but not fussy. Strong thalasso-resort energy.
Book a sea-view room on an upper floor — the pine forest-side rooms face away from the water
Why It Matters
One of the rare full-service thalassotherapy hotels on France's Atlantic coast inside the MGallery boutique hotel network. The ocean liner design concept runs through every detail, and multi-day wellness cure packages with 15–24 thalasso treatments give it genuine resort-destination credentials.
Côte Ouest is a four-star thalassotherapy resort built around an obsessive 1930s ocean liner theme — from the lighthouse at the entrance to the ship-cabin proportioned rooms and the leather armchairs in the bar lounge. It sits between a pine forest and the Bay of Les Sables-d'Olonne, with direct access to the Tanchet Beach area. The real draw here is the 1,500 sqm thalasso centre: 25 treatment rooms, a heated seawater pool, sauna, hammam, and a jacuzzi that looks straight out to the Atlantic. Rooms are on the compact side at 25 sqm, but the views and the wellness facilities are the point.
Where You'll Stay
11 room types available
Armateur Suite – Sea View
The largest suite at 65 sqm on the 3rd floor, with a 15 sqm sea-view terrace. Duo whirlpool tub, walk-in shower, Phytomer products, bathrobe, slippers, Nespresso machine, minibar, kids' sofa bed. Sleeps up to 4. Free access to 31°C seawater pool, jacuzzis, sauna, steam room, and gym.
King · 65 sqm
Classic Room – Pine Forest Side
Ground-floor room facing the pine forest with balcony. 43-inch TV, walk-in shower, Sothys products, bathrobe, slippers, Nespresso machine, mini-bar. Baby crib on request. Free access to 31°C seawater pool, jacuzzis, sauna, hammam, and fitness centre. No sea view.
Queen or 2 singles · 25 sqmClassic Room – Sea View
Ground-floor room with balcony and sea view. 43-inch TV, walk-in shower, Sothys products, bathrobe, slippers, Nespresso machine, mini-bar. Baby crib on request. Free access to 31°C seawater pool, jacuzzis, sauna, hammam, and fitness centre.
Queen or 2 singles · 25 sqmCommander's Suite – Corner Sea View
Suite with a wraparound corner terrace (129 sq ft) and sea view. King bed for 2 persons.
King · 45 sqmJunior Suite – Sea View
3rd-floor suite with a 12 sqm terrace (129 sq ft) and sea view. Features a whirlpool tub and walk-in shower, 43-inch TV, Phytomer products (upgrade from standard rooms), bathrobe, slippers, Nespresso machine, and mini-bar. Sofa bed option available. Free access to 31°C seawater pool, jacuzzis, sauna, steam room, and gym.
King · 45 sqmPremium Suite – Sea View Terrace
3rd-floor suite with a large 15 sqm terrace (162 sq ft) facing the sea. Duo whirlpool tub, walk-in shower, Phytomer products, bathrobe, slippers, Nespresso machine, minibar, kids' sofa bed. Free access to 31°C seawater pool, jacuzzis, sauna, steam room, and gym.
King · 55 sqm
Superior Room – Pine Forest Side
1st or 2nd floor room with balcony facing the pine forest. 43-inch TV, walk-in shower, Sothys products, bathrobe, slippers, Nespresso machine, mini-bar. Baby crib on request.
Queen or 2 singles · 25 sqmSuperior Room – Sea View
1st or 2nd floor room with balcony and sea view. 43-inch TV, walk-in shower, Sothys products, bathrobe, slippers, Nespresso machine, mini-bar. Baby crib on request. Free access to 31°C pool, jacuzzis, sauna, hammam, and fitness centre.
Queen or 2 singles · 25 sqmSuperior Room – Sea View Terrace
1st floor room with a full terrace (rather than balcony) and sea view. Sofa bed for a child. 43-inch TV, walk-in shower, Sothys products, bathrobe, slippers, Nespresso machine, mini-bar. Free access to 31°C seawater pool, jacuzzis, sauna, hammam, and fitness centre.
Queen · 25 sqmSuperior Room – Sea View with Sofa Bed
1st or 2nd floor room with balcony, sea view, and sofa bed for a child. 43-inch TV, walk-in shower, Sothys products, bathrobe, slippers, Nespresso machine, mini-bar. Good for families.
Queen · 25 sqmSuperior Suite – Sea View
2nd-floor suite with two balconies and sea view. Sleeps up to 4. Two 43-inch TVs, bathtub, walk-in shower, Sothys products, bathrobe, slippers, Nespresso machine, mini-bar, sofa bed for a child. Free access to 31°C pool, jacuzzis, sauna, hammam, and fitness centre.
King · 50 sqmThe Property
Eat & Drink
2 venues on property
Restaurant
Spa & Wellness
Treatment Menu
On Property
How you'll actually spend your days.
Bicycle rental available at the hotel (supplement applies). Good for the coastal paths around Lac de Tanchet and towards the town.
A private guided tour of Les Sables-d'Olonne's fish market at dawn. Watch the morning catch being auctioned, then eat fresh oysters paired with wine. It's the hotel's signature MGallery 'M Moment' experience — genuinely local and genuinely good.
Fitness classes including Pilates offered at the hotel's ocean-view gym.
Organised cinema evenings for guests.
Private cinema and reading room available for guests. Advance notice requested.
Outdoor heated saltwater pool with retro beach cabins and ocean views. Complementary for hotel guests.
Multi-day cure programmes ranging from 3 to 6 days, covering massage & relaxation, slimming, anti-age beauty, and back-specialist cures. Bookable with or without hotel accommodation.
The hotel hosts weddings with poolside cocktail settings and personalised menus from the chef. Three modular meeting/event lounges with terraces and ocean views.
Amenities & Practical Info
The details that matter for planning.
Elevator access to upper floors. Property is wheelchair accessible with adapted facilities.
Private beach area adjacent to the hotel. Free beach cabanas, towels, umbrellas, and sun loungers.
Three modular meeting/event lounges with terraces and ocean views, suitable for seminars and corporate events.
Family rooms available with sofa beds for children. Children's menus in the restaurant. Baby cribs on request.
Technogym-equipped gym with panoramic ocean views. Free for hotel guests.
Sun terrace with ocean view and sun loungers.
Electric vehicle charging terminals available on site.
Free private outdoor parking for hotel guests. Also available for restaurant guests.
Open-air heated pool with retro beach cabins and ocean-facing setting. Free for hotel guests.
Heated to 31°C (88°F) with a full marine hydro-jet circuit: swan neck, bubbling benches, underwater jets, counter-current walking channel. Behind floor-to-ceiling bay windows. Free for hotel guests.
In-room dining service available.
Herbal tea room for post-treatment relaxation, part of the thalasso complex.
Solarium terrace within the wellness complex.
Jacuzzi positioned to face the Atlantic Ocean — sunset viewing here is the move.
Middle Eastern-style hammam within the wellness complex.
Finnish sauna within the thalasso/wellness complex.
Ice fountain for contrast therapy, part of the thalasso circuit.
BUILD YOUR CÔTE OUEST THALASSO - MGALLERY PLAN
Rooms, dining, spa, and resort experiences — organized into one trip plan.
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