This open reef is for experienced divers only and its exploration may require assistance from a local dive guides. It could be accessed by banca southwest across the Maribacan Strait and around the northwest end of Maribacan Island. The rock itself is bounded by a fairly shallow area at about 35 feet, ending in a series of drop-offs running down to about 60 feet. The area is huge and the currents are ferocious. Marine life is abundant with different species of fish and quite a few pelagic varieties. Grey reef sharks and white tip reef sharks are occasionally seen in the area.