The Sanctuary is located North of the Hillsborro Inlet and East of Opal Towers on the second reef line. The top of the sanctuary is 35' and reaches 55' to the East. This reef is a beautiful section and is very different than most of the other reefs in that it has two distinct ledges that meet. So named for it's vast amount of life, the sanctuary is home to 1000's of critters big and small. We have even spotted dolphin in the area of the Sanctuary.