This dive site, Koh Tachai North Reef, is known for its gentle, sloping hard coral reef that transitions into a sandy bottom, reaching a maximum depth of 21 meters. It offers an easy and relaxing dive experience, making it ideal for beginners and night dives. Often dubbed "Leopard Shark Reef," it's a relatively straightforward dive, typically navigated by following the reef slope and scanning the sandy areas for marine life.
Divers can expect to encounter a vibrant array of marine life, most notably leopard sharks commonly found resting on the sandy bottom. The site is also frequented by schools of barracudas and trevally, adding to the spectacle of larger pelagics. The reef itself boasts healthy hard corals, including impressive staghorn and brain coral formations, providing habitat for a diverse range of smaller reef fish.
While specific best times are not provided, Koh Tachai, like much of Thailand's Andaman Sea, is best visited during the dry season (typically November to April) for optimal conditions. The main highlight is undoubtedly the consistent leopard shark sightings. Its calm and shallow average depth of 10 meters makes it excellent for both new divers building confidence and freedivers seeking relaxed exploration.
