Hin Ngam

A shallow reef plateau extending north of Hin Ngam island, a tiny islet famous on the surface for its smooth, colourful pebbles. Underwater, the gently sloping reef from 3 m to 18 m is blanketed in diverse hard coral, making it one of the best entry-level sites in the park. Clownfish in anemones are abundant across the shallow top; the deeper rubble margin hosts flatheads, cuttlefish, and a reliable resident blue-ringed octopus population.