Atmosphere. The young and sporty French are wild for their scooters de mer, but you can't rent a Jet Ski in Guadeloupe unless you have a special license. Instead, Atmospheres organizes group excursions for two to five hours with either one or two persons on each Jet Ski. For those who want to try it before they buy an excursion, you can rent a scooter de mer for 20 minutes. It's a pricey but exhilarating way to enjoy the sea, and you can experience a number of different sites speedily; the full day includes lunch at a remote islet. If you have knee or back problems or are afraid of speed, stay on your chaise longue: even twentysomethings are sore afterward. Atmosphere also services La Toubana, Club Med, and more. La Créole Beach Hotel & Spa, Pointe de la Verdure, Le Gosier, Grande-Terre, 97190. 0590/88–08–62; 0690/49–47–28; atmosphere-antilles.com. From €70.