The biggest island in the Philippines, Luzon is also one of the most diverse—it’s where mountain peaks and volcanoes meet miles of coastline, and indigenous culture melds with Spanish colonial history. You can relax at the beach in Pagudpud, hike with locals up the Batad Rice Terraces, ride in a horse-drawn carriage in Vigan, and snack on street food and dance the night away in Manila. You’ll need a few days and a bus pass, but you’ll be glad you stayed.

Forested hills, romantic white-sand beaches and crystal-clear waters greet visitors to tropical Palau Langkawi, the largest of the 99 islands in Langkawi archipelago. Known mysteriously as "Legendary Island" because of myths associated with its ancient geological formations, it drifts serenely alongside Malaysia in the azure Andaman Sea. Sample local cuisine at the night markets, hike to dramatic waterfalls or dive into an underwater marine park to take a guided glimpse at life beneath the sea.

The island capital of the Maldives teems with high rises and narrow streets, all ringed by seawalls. Shopaholics can savor Male's flavors in the local markets, which are packed with fresh produce, and along Chaandanee Magu, the spot for local souvenirs, such as carved wooden dhonis, miniature replicas of the boats dotting area waters. The golden-domed Friday Mosque presides over the landscape, while the underwater riches of the atolls lure scuba enthusiasts from around the globe.

The Seychelles largest and main island, Mahe is home to the capital of Victoria and about 70,000 people (almost 90% of the nation's total). Still, the island retains its idyllic beauty, with 3,000-foot mountains and scores of gorgeous beaches. Many plants, including the so-called Jellyfish Tree and several rare orchids, are unique to Mahe's shores. The Seychelles Natural History Museum, the Botanical Gardens and the Codevar Craft Centre, all in Victoria, are not to be missed.