Kilsby Sinkhole Tours

Adventure and Outdoors Tours

Serenely located beneath a rural farming property only 15 minutes from Mount Gambier, ‘Kilsby Sinkhole’ is world-renowned as one of the best sinkhole dive sites due to its crystal clear water and breathtaking visibility.

Kilsby Sinkhole is the only sites of its kind that welcomes snorkellers, freedivers and Open Water certified scuba divers under the supervision of a licensed and industry qualified guide.

Kilsby Sinkhole is also home to Sinkhole Gin, produced from crystal clear limestone-filtered water and local native botanicals.

Snorkelling and Sinkhole site tours (incorporating gin tastings coming soon) are achievable by prior arrangement only. Snorkelling tours around 2 hours in duration with all gear supplied. Sinkhole tours take around 45 mins.
Scuba and Free diving available with one of our registered Licensees only ,( a list of these are on our website for you to book with).

All equipment is provided and water activity is completed under the supervision of an industry-certified guide.


Service Types

Adventure and Outdoors Tours Cruises, Sailing and Water Tours Sightseeing Tours
Free Wifi


Basic Moderate





Enjoy the unique experience of snorkelling in a freshwater limestone sinkhole.

Due to the size of the pontoon, group size is limited to 8 participants. The experience includes a welcome briefing covering the history of the sinkhole and everything you need to know about snorkelling, fitting you with mask, fins, snorkel and wetsuit (or feel free to bring your own) and an accompanied snorkel tour with an experienced guide. In total, your snorkelling at Kilsby Sinkhole will take around two hours. No weights allowed or Free Diving Fins.

Disabled Access

Carpark Family Friendly

To $0

Learn about the geology and history of Kilsby sinkhole – including why it’s cave is so popular with divers and what secret role it played in Australia’s military history, before being taken down to the pontoon to see the beauty of the sinkhole and experience its extraordinary tranquility from water-level. The tour takes about 45 mins.

Disabled Access

Carpark Family Friendly

While Kilsby Sinkhole offers a range of options for snorkelling and tours at the site, we also collaborate with trusted scuba diving operators, each who hold their own licence to conduct diving activity at Kilsby Sinkhole.

Visit our website to explore the available operators to make a booking.
Our local dive guide operation is Dive Experience contact Darren at [email protected]

Disabled Access

Carpark Family Friendly

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Glencoe Memorial Wall

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Cape Northumberland

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Mount Gambier Railway Lands

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Crater Lakes Walking Trail

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