Australia
Australia’s sinkholes and water-filled limestone caves resemble cenotes and attract divers from around the world — especially in Mount Gambier.
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Umpherston Sinkhole
A giant garden inside a sinkhole—filled with hanging vines, flowers, and perfect ...
Kilsby Sinkhole
Famous sinkhole with crystal-clear water and light beams—guided tours only, ideal for ...
Little Blue Lake
Bright blue sinkhole lake in a volcanic crater—perfect for swimming, cliff jumping, ...
Piccaninnie Ponds
Crystal-clear ponds with deep blue caverns—great for snorkeling, cave diving, and underwater ...
