I just wanted to add information about finding the second reef. Like a couple of previous reviewers, I ended up in the sand channel between sections of the outer reef initially. If you enter at the yellow rock, the bearing is 270 degrees to the mooring buoy. If you continue straight out past the buoy on the 270 degree course, you will end up in the sand channel. Instead leave the buoy on a 255 degree course and after crossing the first reef and a fairly narrow sand flat you will come right over the second reef that rises to 55 feet below the surface.