Property Location When you stay at Résidence Odalys Thalassa in Chateau-d'Olonne, you'll be near the beach and convenient to Musee de l'Abbaye Sainte-Croix and Les Sables d'Olonne Beach. This 4-star residence is within close proximity of Piscine du Remblai and Casino Les Sables d'Olonne. Rooms Make yourself at home in one of the 75 guestrooms. Complimentary wireless Internet access keeps you connected, and digital programming is available for your entertainment. Bathrooms with showers are provided. Conveniences include sofa beds, and irons/ironing boards can be requested. Business, Other Amenities Free self parking is available onsite.