Mt. Gambier

Mount Gambier is the home of The Blue Lake which is a flooded, volcanic crater which is on average 80 m deep with a rumoured deep section of more than 200 metres (see photo). The surrounding countryside is thick limestone pitted with sinkholes and cave entrances. The shallow water table means several dozen of them are diveable. There are even caves running underneath the town itself where you can cavedive (ie Engelbrechts Cave).

The sinkholes are generally deep (40-70m), dark and cold (14-16C). Some have crystal clarity while others are like soup that changes consistency between seasons. The most amazing sinkhole has to be The Shaft which was dived by Sheck Exley in the late 90’s to in excess of 80m. Efforts in The Shaft during recent years on trimix have discovered massive deep tunnels at -125m but they have been terminated. Tank Cave is the prize of cave divers in the region and has in excess of 7km of surveyed phreatic maze passage.

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Dive Locations in Mt. Gambier

The Shaft

Located West of Allendale south of Mt Gambier, The Shaft is an amazing sinkhole that is accessible from the surface (in the middle of a paddock) via a 1m wide solution pipe. Visibility is limited by light source intensity, not water clarity. Reported to be 125m deep, the Shaft is currently Australia?s deepest natural freshwater … Continue reading The Shaft

29/01/2015 06:04 hrs
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trimixguy

The Pines

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trimixguy

The Blue Lake

29/01/2015 06:03 hrs
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trimixguy

The Black Hole

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trimixguy

Tank Cave

29/01/2015 06:03 hrs
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trimixguy

Piccaninnie Ponds

29/01/2015 06:03 hrs
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trimixguy

One Tree Sinkhole

29/01/2015 06:02 hrs
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trimixguy

Nettle Cave

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trimixguy

Nettle Bed Cave

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trimixguy

Mud Hole

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trimixguy

Kilsbys Hole

29/01/2015 06:01 hrs
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trimixguy

Little Blue Lake

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trimixguy

Kilsbys Hole

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trimixguy

Hell’s Hole

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trimixguy

Gouldens Hole (Goulden Waterhole)

29/01/2015 06:00 hrs
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trimixguy

Fossil Cave

29/01/2015 06:00 hrs
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trimixguy

Ewen’s Pool

29/01/2015 06:00 hrs
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trimixguy

Engelbrechts Cave (West)

29/01/2015 05:59 hrs
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trimixguy

Engelbrechts Cave (East)

29/01/2015 05:59 hrs
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trimixguy

Ela Elap Sinkhole

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trimixguy

Death Cave

29/01/2015 05:58 hrs
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trimixguy

Dave’s Cave

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trimixguy

Bullock Hole

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trimixguy

Bottle Brush Sinkhole

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trimixguy

Allendale Sinkhole

This cave is located in the middle of the road in the town of Allendale south of Mt Gambier. The roads north & south actually split to go around the cave entrance. A small tunnel (approx 5m diameter) follows the rock & rubble slope to the North West down to a depth of some 28m … Continue reading Allendale Sinkhole

29/01/2015 05:57 hrs
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trimixguy

Wet Caves and Shipwrecks Australia