Islands conjure dreams of paradise: an escape from the rat race and a perfect patch of sand where you can relax under rustling palms and gaze at a serene blue sea. But not all islands are created the same. The beauty of some is defined more by the sea that surrounds them, which can captivate connoisseurs with its crystalline clarity and thriving coral kingdoms. Other islands feature luxuriant jungles and velvety peaks, and some enchant travelers with their cultural jewels.


1. Maldives


The Maldives are home to some of the world's most ravishing islands, but it's the sea, which truly makes these islands shine. Luminous aquamarine waters with a crystal clarity lap upon these dazzling white shores, which barely peek above the Indian Ocean. Consisting of 26 natural atolls, the Maldives archipelago is the planet's lowest lying nation, rising no more than three meters above the sea at its highest point, a measurement that shrinks every year. Beneath the mesmerizing waters, coral reefs flourish, luring divers and snorkelers from around the world. Surfers also flock here to ride the uncrowded breaks. Back on land, the Maldives' luxury resorts provide the perfect launching points for adventures focused upon the sea, the archipelago's greatest asset, but also, as the planet's climate changes, its single greatest threat.


2. Bora Bora, French Polynesia


Shaped like a giant sombrero, this lush volcanic island stars in countless South Pacific fantasies. The focal point and best asset of this tropical beauty is its ravishing lagoon in technicolor turquoise. Fish, turtles, sharks, and rays swim in the clear waters, and tiny islets or motus dot the lagoon. The island, of course, is distinctly French, with mouthwatering cuisine to match. Diving and snorkeling are excellent in the surrounding reefs, and hiking trails weave through the palm-studded forests. If you can afford it, hide out here in a luxurious over-the-water bungalow and bask in your good fortune as you fall asleep to the gentle slosh of the sea.


3. Palawan, Philippines


Palawan is the Philippines' answer to paradise. This island province stretches southwest to Borneo, with lush limestone peaks rising from a jewel-like sea so clear, that you can almost see the expressions on the fish from above the surface. Slivers of gleaming white-sand beaches fringed with rustling palms rim many of these jungle-clad islands, while under the water, coral reefs teem with an impressive diversity of tropical fish, offering some of the best diving in the world. Other attractions include the islands' unique wildlife, emerald lakes, and quaint fishing villages. Coron is home to plush resorts, and El Nido drips with natural beauty and is one of the most alluring islands in the chain. From here, you can island hop around the spectacular Bacuit archipelago. One of Palawan's top attractions is the World Heritage-listed Puerto Princesa Subterranean River National Park, an impressive limestone cave system with a long underground river.


4. Seychelles


Pristine and picture-perfect, the Seychelles are worth traveling for. East of Kenya, this relatively unspoiled archipelago of 115 coral and granite islands is packed with attractions, from UNESCO-listed jungles and thriving coral reefs to palm-lined, powdery beaches flanked by giant boulders. Almost half the total land area of these equatorial isles is protected, and many of the islands lie within fish-rich marine sanctuaries with excellent diving and snorkeling. The Seychelles also feature some of the planet's richest fishing grounds, making this a top destination for anglers. Add some spicy Créole cuisine into the mix, as well as the plush resorts of Mahé, Praslin, and La Digue, and it's easy to understand the Seychelles' allure.


5. Santorini, Greece


Encircling a sea-filled caldera, spectacular Santorini scores top points for its dramatic beauty. Bleached white villas tumble down volcanic cliffs. Blue-domed churches rise against the sparkling sea, and bright sprays of bougainvillea add to the eye-popping color palette. Perched atop the black lava cliffs, the settlements of Firá and Oia are the island's most picturesque — and pricey, destinations — and Oia ranks among the most photographed locations in the world. Other highlights of Santorini include Akrotíri Archaeological Site, Ancient Thira, the black sand beach of Perissa, and of course, the sublime sunsets. Sailing into this stunning caldera surrounded by soaring sea cliffs makes an unforgettable first impression.