A Fantastic Reef Dive out From MT Martha Beach , Park in the Beach Carpark opposite Kilburn Grove Road. Walk across the beach and into the water head out NW toward the yellow post marker. Surface swim with your Snorkel out 300 metres until you start to see the reef under you in about b5 metres of water, Tow a buoy so boats can see you. Descend and go around the reef in a clockwise direction. Lots to see a great reef topography home of a Port Jackson Shark nursery during the spring months. Keep 80 Bar in your tanks for the swim back.