The Similan Islands in the Andaman Sea

Off the west coast of Thailand, north of Phuket, the Andaman Sea offers one of the most spectacular diving playgrounds in Southeast Asia. The Phang Nga region, with its dramatic karst formations, hidden lagoons, and limestone islets rising from turquoise waters, provides scenery that is just as breathtaking above the surface as it is below.

Further offshore, the Similan Islands are a true marine sanctuary. Renowned for their crystal-clear waters, giant granite boulders, and steep drop-offs, they are home to exceptional biodiversity: manta rays, sea turtles, leopard sharks, schools of tropical fish, and thriving coral reefs. Visibility is often outstanding, making the Similans a must-visit destination for divers.

Between wild landscapes, legendary dive sites, and well-preserved marine life, Phang Nga, the Similan Islands, and the Andaman Sea offer a complete, authentic, and deeply immersive diving experience—where the adventure begins with the very first descent.

Discover some of the most beautiful dive sites in the world, offshore from the Similan Islands, the Surin Islands, and at Richelieu Rock. Suitable for beginners and experienced divers alike, with options ranging from day trips to liveaboard cruises from 1 to 6 nights.