Koh Tachai, also known as “The Dome,” is a top dive site in the area. With submerged pinnacles, massive granite boulders, and thriving coral reefs, it’s a marvel to discover!.

Located close to Koh Bon, it’s home to stunning coral gardens, rays, leopard sharks, nurse sharks and hawksbill turtles. Some divers might even get lucky and spot whale sharks and manta rays. 

This dive site is a diver’s playground. The underwater ridge ‘Twin Peaks’ offers exciting drift dives with strong currents and incredible marine life.

With stunning topography and excellent visibility, Koh Tachai is a favorite among experienced divers looking for big fish action and thrilling underwater encounters.