Koko Craters is a series craters sitting in 35 - 40 feet of water. With its protected ledges and shallow depths, Koko Craters is home to dozens of Hawaiian Green Sea Turtles. Hawaiian Cleaner Wrasse can be seen cleaning the shells of the turtles as they cruise back and forth to the surface for air. Several types of eels can also been seen here tucked into the surrounding ledges. The perfect Oahu scuba diving site for begineer divers, or anyone interested in scuba diving with Hawaiian Green Sea Turtles. Choose Reef Pirates Diving for all your Oahu scuba diving needs.