Drifting serenely in the Gulf of Thailand, the palm-fringed island of Ko Tao takes its name from the abundant sea turtles that reside on its shores. White sand beaches sheltered by steep hills – some only accessible with four-wheel drive vehicles – and 300 days of sun per year invite long afternoons of lounging.

Thailand’s largest island is an international magnet for beach lovers and serious divers, who enthusiastically submerge themselves in the Andaman Sea. Blue lagoons and salmon sunsets make for a dream-like atmosphere, and indeed, a vacation here can feel a bit surreal. Watersports are the most popular activities, though once you’ve had enough sun there’s still plenty to explore at the island’s aquariums, gardens, and Buddhist temples.

An epicenter of eco-tourism, Manado is a popular spot for scuba diving and snorkeling, especially at Bunaken National Park. Heat your vacation up with a trip to one (or all) of the nearby volcanoes, including Lokon Volcano and Klabat Volcano, then kick it up even further with a Manadonese meal. The people of Manado like their flavors action-packed with tons of spice.

Bali is a living postcard, an Indonesian paradise that feels like a fantasy. Soak up the sun on a stretch of fine white sand, or commune with the tropical creatures as you dive along coral ridges or the colorful wreck of a WWII war ship. On shore, the lush jungle shelters stone temples and mischievous monkeys. The “artistic capital” of Ubud is the perfect place to see a cultural dance performance, take a batik or silver-smithing workshop, or invigorate your mind and body in a yoga class.

Want to make your co-workers insanely jealous? Just casually drop "I’m vacationing in the Maldives this year" into conversation, preferably in the dead of winter. Or better yet, go there without mentioning it to anyone—then send them a "Wish you were here!" postcard.

Mauritius is arguably Africa’s wealthiest destination, a tropical paradise with tons to do. Port Louis, the modern capital of this 38-mile by 29-mile island, is a bustling port with a revitalized waterfront and a busy market. But most visitors gravitate toward resort areas such as Mont Choisy, quiet Trou-aux-Biches and the more bustling Flic en Flac, popular with scuba divers. Rivière Noire is ideal for those looking for great deep-sea fishing.

Thanks to the addition of an international airport in 2001, Marsa Alam is fast becoming a premium tourist destination, especially for scuba divers. The waters here are brimming with marine life and pristine dive sites. Landlubbers, don’t miss the Emerald Mines and the Temple of Seti I at Khanais.

Diverse marine life and hundreds of Red Sea coral reef sites make Sharm El Sheikh a magnet for divers and eco-tourists. The tourist economy of this Sinai Peninsula city has grown quite rapidly over the last few decades, resulting in an upcrop of first-class resorts and posh nightlife. The waters of Ras Mohamed National Park are abundant with schools of fish and, oddly, toilets – thanks to the bathroom fixtures being transported by a cargo ship that sank during a 1981 storm.

The Zanzibar Archipelago, located in the Indian Ocean 15 miles off the coast of Tanzania, is a breathtaking spot to escape from the world. You’ll enjoy clear, turquoise-blue water; shallow sandbars perfect for wading; and many small, nearly deserted islands virtually unvisited by tourists. Explore the World Heritage Site of Stone Town, Zanzibar City’s old quarter. Or just go beach to beach between tiny fishing villages—each one's better than the next.