Patented Wide Angle Lens available with different threads and adaptors which fits onto your underwater camera housing's port and can be installed and removed during the course of the dive.
The South West Rocks Dive Centre is best known for the world class diving at Fish Rock including Fish Rock Cave - Australia's best ocean cave dive which runs right through the island of Fish Rock. Also a major site to dive with the Grey Nurse Shark.
Of all the books I have ever read on Australian dive sites all of them list South West Rocks, more specifically Fish Rock Cave in New South Wales as a premier diving spot with the longest underwater sea cave in the Southern Hemisphere and of course the resident Grey Nurse Sharks.