Koh Bon

As part of the world-renowned Similan Islands National Park, Koh Bon Island is one of the most exhilarating dive sites on any Thailand liveaboard diving itinerary. With its dramatic underwater topography and the chance to encounter oceanic manta rays, this dive site offers both beauty and excitement beneath the waves.

Koh Bon is especially famous for its submerged ridge, a deep underwater structure that drops from just below the surface to depths exceeding 55 meters. This ridge acts as a magnet for marine life, including pelagic species drawn in by the nutrient-rich currents. Divers often enjoy thrilling drift dives here, with frequent sightings of banded sea snakes, schooling trevally, Hawksbill turtles, octopuses, and marbled rays.

While the northern reef has areas of rubble due to coral bleaching in 2016, the southern bay remains vibrant, with colorful corals and abundant reef fish. The island’s underwater terrain makes it ideal for wide-angle photography and action cam footage, perfect for capturing unforgettable moments during your Thailand liveaboard diving trip.

From November to April, Koh Bon becomes a manta ray hotspot, believed to serve as a cleaning station for these majestic creatures. It’s not uncommon to see them gracefully circling divers in the blue, and with a bit of luck, even a whale shark might make an appearance—an experience that defines what makes liveaboard diving in Thailand so special.

With DiveRACE liveaboard, you'll dive Koh Bon under the guidance of experienced professionals who know the currents, topography, and best times for sightings. Whether you’re a seasoned diver or a newcomer to liveaboards, this is one site you won’t want to miss.

Experience the thrill of Thailand liveaboard diving with DiveRACE and discover the magic of Koh Bon Island. Book your trip today and dive into adventure!

See what Koh Bon has to offer in our Dive With Us series: Koh Bon.