This ivy-hung hole-in-the-ground was once a retreat from the summertime heat on James Umpherston's long since subdivided estate, now surrounded by lumberyards. You could row a boat around in the bottom before the water table dropped some years ago, after an earthquake. There's a little kiosk here for snacks and drinks.
Umpherston Sinkhole
Lonely Planet's must-see attractions
1.79 MILES
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Tantanoola Caves Conservation Park
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Port MacDonnell Maritime Museum
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1.67 MILES
This is a 50m-deep sinkhole right in the middle of town, with the odd suicidal shopping trolley at the bottom. You can walk down into it, and watch the…
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1.47 MILES
The Lady Nelson Discovery Centre (access via the visitor information centre) features a replica of the historic brig Lady Nelson, the sailors aboard which…
Nearby attractions
1. Lady Nelson Discovery Centre
1.47 MILES
The Lady Nelson Discovery Centre (access via the visitor information centre) features a replica of the historic brig Lady Nelson, the sailors aboard which…
1.67 MILES
This is a 50m-deep sinkhole right in the middle of town, with the odd suicidal shopping trolley at the bottom. You can walk down into it, and watch the…
1.68 MILES
If Mount Gambier's famed Blue Lake isn't blue, don't feel blue − cheer yourself up at one of Australia's best regional galleries. Passionately curated,…
1.79 MILES
Mount Gambier's big-ticket item is the luminous, 75m-deep lake, which turns an insane hue of blue during summer. Perplexed scientists think it has to do…
2.33 MILES
A rubbish dump prior to 1979, this meandering cave system runs beneath Jubilee Hwy and 19 local houses! Tours last 45 minutes and take you down to an…
6. Princess Margaret Rose Cave
14.41 MILES
Opened to the public in 1940, this limestone cave with surreal, gleaming calcite formations remains one of Australia's finest show caves. It can only be…
7. Lower Glenelg National Park
14.85 MILES
Hidden away in Victoria's far southwestern corner is one of the state's most scenic national parks, of which the Glenelg River is the most prominent…
8. Port MacDonnell Maritime Museum
15.94 MILES
Around 40 ships have sunk along the wave-ravaged Port MacDonnell coast since 1844. The Port MacDonnell Maritime Museum is a barnacle-encrusted trove of…