Mount Gambier · about 24 km from Mount Gambier
Fossil Cave (Green Waterhole)
- Max depth16 m
- CertificationFull cave
- Water temperature≈ 14–16 °Cestimated, no reports yet
Diving and fills
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The dive
The cave holds Pleistocene fossils. It has been provisionally on the South Australian Heritage Register since 2021.
Profile and sections
The cave holds Pleistocene fossils. It has been provisionally on the South Australian Heritage Register since 2021.
- Depth and profile
- A small, old sinkhole to a broad chamber of ~70 × 30 m, ~15–16 m deep, with dark silt. Divers with a Cave rating go at most 13 m into the phreatic passage; past the sign only with Advanced Cave. Now the western end of the Tank Cave system.
- Configuration
- Broad chamber: every configuration; the passage beyond is lower (estimate). CDAA rating: Cave, past the sign Advanced Cave.
Who can dive where
- At least Full cave
- Configurations: Backmount / twinset / Sidemount / CCR / Small cylinders / no-mount (speleo sumps)
- Goes down to 16 m (trimix or deco may be needed)
This is how the planner decides who in your team may dive this cave. Rules your own trip adds (organizer, a mail, the AI) show with your trip.
How to get there
By the Princes Highway at Tantanoola, ~22 km north-west of Mount Gambier; DEW land. Book at least 48 hours ahead through Parks SA: slots 8–10, 12–14 and 16–18 h, at most 5 divers per slot and 2 slots a day, indemnity.
Around Fossil Cave (Green Waterhole)
FillsNo fill station known nearby
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