Some wonders aren’t found on land — they’re hiding just below the waves. Off the western coast of Thailand, in the balmy embrace of the Andaman Sea, there’s a scattering of islands that hold the keys to an underwater paradise. This isn’t just another tropical destination. This is the Similan Islands — a dreamscape of coral cathedrals, white sand crescents, and electric-blue waters.

Picture this: a hammock strung between two palms, waves gently lapping at the sand, the scent of lemongrass in the air, and your only worry being whether to order a mango smoothie or a coconut shake next. Welcome to Thailand’s little slice of tropical heaven—Koh Samui.