Piccaninnie Ponds is a popular site for both snorkelling and cave diving. It contains 3 main features of interest to cave divers. The ‘First Pond’ is an open depression about 10m deep with a silt floor and much aquatic life, the ‘Chasm’ is a sinkhole with a depth of over 100m, and the ‘Cathedral’ is an enclosed area with limestone formations and a depth of about 35m