Almost 80 km's off Cairns, on the very Outer Edge Great variety of fish life, pelagics, turtles, coral gardens, swim throughs, caves, giant clams. Ampitheatre like sandy floors are surrounded by coral hillocks, reef edge and bommies. The swim throughs are excellent but some of the caves are not safe and a guide is necessary to lead you and show you which ones are safe. There are walls of all sizes and shapes with overhangs common.