Accessible only by boat due to the towering limestone cliffs that seal it off from the mainland, Railay Beach feels like a secret paradise that the rest of the world forgot to develop. The peninsula juts into the Andaman Sea near Krabi and is home to four distinct beaches, each with its own character. Railay West is the postcard-perfect white sand strand framed by dramatic karst formations, while Phra Nang Beach at the southern tip is consistently ranked among the most beautiful beaches in Asia, with its turquoise shallows, princess cave shrine, and limestone towers that rise straight from the sand.

Railay is also the premier rock climbing destination in Southeast Asia. The limestone walls offer hundreds of bolted routes ranging from beginner-friendly overhangs to world-class multi-pitch climbs, all with jaw-dropping views of the sea below. Between climbs, visitors can kayak through sea caves, hike to the viewpoint lagoon hidden in the jungle interior, or simply sway in a hammock strung between palm trees as the sun melts into the Andaman horizon.

Pro tip: Stay on the peninsula for at least one night — most day-trippers leave by late afternoon, and the sunset over Railay West with only a handful of people on the beach is magical. For rock climbing, book a half-day intro course with one of the local outfitters at Railay East — no experience is needed, and climbing the cliffs at sunset is an unforgettable experience.