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Mount Gambier

Mud Hole

  • Max depth17 m
  • CertificationFull cave
  • Water temperature≈ 14–16 °Cestimated, no reports yet
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Directions

Diving and fills

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What it looks like

All 1 videos and posts

Videos and posts

From other divers, via YouTube, Instagram and Facebook. They only load when you click; after that, Google's or Meta's privacy rules apply.

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Other people's footage, not advice: how someone else dives here says nothing about what suits your team. Dive within your training.

The dive

The site is shaded and the water is usually very clear.

According to the CDAA it is 'very easily silted out by the first diver in'.
Source: CDAA – Mud Hole ↗
Profile and sections

The site is shaded and the water is usually very clear.

Source: CDAA – Mud Hole ↗Source: Forestry SA – caving ↗
Depth and profile
A low, silty chamber that pinches off at ~17 m.
Configuration
Low chamber (estimate: every configuration with good trim).
Who can dive where
  • CaveAt least Full cave
  • Whole caveConfigurations: Backmount / twinset / Sidemount / CCR / Small cylinders / no-mount (speleo sumps)
  • Whole caveGoes down to 17 m (trimix or deco may be needed) · doesn't decide who may dive
Permission neededEntry or dive fee

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.

Source: CDAA – Mud Hole ↗Source: Forestry SA – caving ↗

How to get there

Forestry SA site (permit, closed on Total Fire Ban days). Also the entrance to Nettlebed. CDAA rating: Cave.

Plan your route ↗

Around Mud Hole

FillsNo fill station known nearby
Other sites6

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Sources, sharing and disclaimer

Sources

Source: CDAA – Mud Hole ↗Source: Forestry SA – caving ↗

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Certification requirements, configurations and trimix depths are estimates for planning. Always check them locally and dive within your training. Compiled from web research (Oct 2026): the Cave Divers Association of Australia (site list, site pages, training and visitor permit), Parks SA, Forestry SA, Wikipedia, the heritage summary of Fossil Cave, cavediving.net.au, CDG reports (caves.org.au), Divernet (2025), the City of Mount Gambier, the Royal Adelaide Hospital, DAN and the dive shops' own websites. Pins only where Wikipedia gives coordinates; the CDAA publishes none. The certification per site is an estimate from the CDAA rating; you always need that CDAA rating as well. Check everything with the CDAA.