This reef is basically located in front of Captain Don's Habitat and we dove it several times, but we entered at Buddy Dive. Head north (right) from Buddy Dive and stay in 30-40 feet of water and you will find this reef area with signs of research from the past in the form of old grids where studies took place, from what I gather. Keep going north and you will find the wreck of the Machaca as well. It's a leisurely 12 minute swim along the drop off to or from Capt.. Don's/Buddy Reef. This is a great night dive with healthy coral and facilities for a change as this entire stretch of reef has resorts dotting the shoreline.