A freshwater dive operator working Mount Gambier's crystal-clear sinkholes and springs, whose signature Ultimate Double Dive pairs Ewens Ponds in the morning with Kilsby Sinkhole in the afternoon on Wednesdays and Saturdays. Ewens is dived first to let people acclimatise to the fresh water before the deep, glass-clear Kilsby, which needs open-water certification. The operator also teaches Open Water and Advanced Adventurer courses with internationally recognised certification, and runs single dives on other days for small groups.