Hot Spot: Frégate Island, Private Seychelles

A mere dot in the Indian Ocean archipelago, this luxury private island is the region's most exclusive eco-retreat. From the main island, Mahé, guests arrive by helicopter or light aircraft, landing between powder-white beaches and lush peaks brimming with wildlife.

Rooms: The 16 mahogany and-thatch villas feature infinity pools, Jacuzzis and private dining cabanas (doubles with full board from $3,790 per night, including private butler). Discreet landscaping ensures total privacy.

Dining: All produce is grown on the island, from avocados to okra, cashews to coffee. The historic Plantation House serves a local Creole dinner of crab soup and spicy curry. Other favorite spots include the Tree House for breakfast, and for high tea, Clacis Serf peak, with sweeping ocean views.

Amenities: In addition to lazing on the ravishing Anse Victorin beach, guests can scuba-dive to see tiger sharks and to fish for wahoo and sailfish. The Rock Spa uses island ingredients, like coconut oil, papaya and the aphrodisiac ylang-ylang oil, in its rejuvenating treatments. Resident ecologist Steve Hill leads nature walks to see such species as ancient giant tortoises and magpie robins, the seventh rarest bird in the world.

Clientele: Occasional celebs book a stay—Liz Hurley spent her honeymoon here—but most guests are anonymous and filthy rich.