Centre Éconautique. Centre Éconautique, aka Clear Blue Caraïbes, has mastered the art of underwater exploration without ever getting your hair wet. Rent a glass-bottom kayak, which allows you to see the myriad colors of one of the world's most beautiful bays here. Paddleboards and clear-bottom, dinghylike inflatables also enable you to play in the water. The tours, which last either two hours or a half day, will let you be privy to the marine beauty of the coral reefs and sea life. Trips to the nearby Isle de Cabrito for a picnic and snorkeling are also offered. To find Centre Éconautique, take a left from the main dock, go two blocks, and look for its colorful signage on the right. It is across from Couleurs du Monde. Ruelle Lasserre, Mouillage, Terre-de-Haut, Iles des Saintes, 97137. 0690/65–79–81; www.clearbluecaraibes.fr. From €20.

Centre Nautique. On the beach, Centre Nautique rents sea kayaks and Hobie Cats by the hour, even flyboards and stand-up paddleboards. Staff can arrange fishing, catamaran, kayaking, diving, and motorboat excursions. It also runs water taxis to the Islet du Gosier. A motorized catamaran excursion to the gorgeous Grand Cul de Sac includes lunch and drinks. There are PADI instructors for the dive segment of the operation, and certifications are possible. Jet Ski rentals include a guide, and range from 20-minute rentals to guided five-hour tours including lunch. Nonguests are welcome but must call in advance. La Créole Beach Hotel & Spa, Pointe de la Verdure, Le Gosier, Grande-Terre, 97190. 0590/90–46–59. From €10.