This dive is made up of a huge underwater cavern that has three openings that are found on a reef wall. The combination of the reef wall and cavern diving make this one of the best dive sites in Palau and is an exhilarating dive.

The dive requires a good level of experience and cannot be completed by beginner divers. It borders on recreational diving’s safe limits and so a safety stop is a mandatory part of this dive.

Visibility is normally excellent and can reach up to 40 metres. The depths of the cavern range from 4 to 28 metres at the main entrance but the bottom of the cavern goes down to 60 metres. The wall drops down to 65 metres and then beyond to the deep ocean. The currents along the wall coming into the cavern can be moderate but once inside the cavern, there is no current.

The wall has large numbers of anthias and butterfly fish that congregate in large groups. At the bottom of the wall, divers can expect to see stingrays and white tip reef sharks swimming along.

At the entrance of the cavern are grey reef sharks and large numbers of snappers and big-eyed jacks. Once inside the cavern, the inside is covered with black coral bushes with the windows of the cavern surrounded by many soft corals and sea fans. Inside the cavern are many deep-water angelfish that hide amongst the crevices. Shrimps and gobies are found along the bottom in shared burrows. The cavern is illuminated by the natural light that reaches these depths and provides an amazing backdrop to the large varieties of marine life I habiting this deep cave.