Explosion Reef is located in the area of Koh Tang. Koh Tang is an uninhabited island located 4-5 hours away from Sihanoukville. Its formation is mainly rocky, with a couple of sandy beaches. The island being so remote, makes it an excellent dive place.
The Explosion Reef runs between Koh Tang and a small island to the west. There are fields of staghorn corals to the north which give way to coral bommies and rock outcroppings further south. The staghorn coral acts as a nursery and "explodes" with the dazzling colours of juvenile fish and marine life.