Koh Prins lies in the Gulf of Thailand, roughly five to six hours by boat from Sihanoukville, and sits within a small archipelago that includes Koh Moan and Koh Veal. The six sites here span reef, wall, pinnacle, drift, and wreck diving, with depths reaching forty metres at Condor Reef, making this one of the deeper options in the region. Boulder fields, hard and soft corals, and wall sections form the main topography. Spotted eagle rays, scalloped hammerheads, silvertip sharks, cat sharks, and sea turtles are all recorded here, and whale sharks occasionally pass through between December and May. Five operators currently run trips to the area.
Monthly water temperature across Koh Prins's sites, from satellite sea-surface data corrected for depth. The band shows the site-to-site spread.
Water temperature is warm across every month, peaking in late spring and cooling slightly through late summer and winter. The dry season from November to April brings the most reliable conditions and visibility that can extend to thirty metres. Currents at several sites, particularly along the walls and at the outer pinnacles, can run from moderate to strong, favouring intermediate and advanced divers on those specific spots.
5 operators
Water temperature around Koh Prins ranges from about 28°C in January to 31°C in May, based on satellite sea-temperature data for its dive sites.
With water around 28–31°C, a rash guard or 3mm shorty works in Koh Prins year-round.
Fin maps 6 sites in Koh Prins (6 scuba diving sites).
