Blue Hole

Widely regarded as one of Guam's best dive sites, the Blue Hole is a natural limestone shaft that descends to 300 feet. Divers can expect to see hard and soft coral, sea whips, and trigger fish are frequently spotted; reef sharks and tuna are not uncommon, either.

Only experienced deep sea divers are recommended to "shoot the hole," but dives around the upper plateau are safer for less experienced divers.