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South Australia

Diving in Mount Gambier Sinkholes & Caves

The limestone around Mount Gambier is riddled with water-filled sinkholes and caves, and they are the heart of Australian cave diving. Kilsby Sinkhole (65 m, clear as air), the Shaft (124 m), Piccaninnie Ponds' Chasm and Cathedral, Ewens Ponds' spring-fed creek, and the Tank Cave system with more than 8 km of passage. Most sites require Cave Divers Association of Australia rating; Kilsby and Ewens are open to recreational divers by booking.

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YouDive turtle in an illustrated South Australia setting; not a photograph of Mount Gambier Sinkholes & Caves

Custom YouDive mascot art inspired by South Australia. An imaginative illustration, not a photograph or map of this destination.

Your bearings, in a minute

Mount Gambier Sinkholes & Caves at a glance

Start with the local site mix, explore the map and find people to ask about your trip.

Explore
36 site records
Recorded settings
Cave/Cavern · Sinkhole/Cenote · Freshwater Lake/River
Map coverage
36 locations to explore
Plan with local help
Meet the listed operators

Directory counts describe published records, not bookable trips. Location confidence is shown separately in the map list. How we check information →

Sources, authorship and review status

Prepared by YouDive editorial with AI assistance. No firsthand visit, equipment test or instructor review is implied.

Independent specialist review: pending. We publish a reviewer’s name, qualifications, date and exact review scope only after the review has actually happened.

Who can contribute and how reviews work →

Find your bearings

Explore Mount Gambier Sinkholes & Caves on the map

Compare where the recorded sites sit, then open a site to read its access and source notes. Locations are for orientation, not marine navigation or entry instructions.

36 matching records · 36 with a map location · 0 without a usable position.

The local notebook

Where should you start in Mount Gambier Sinkholes & Caves?

Use the actual places attached to the local records to narrow your research. These are recorded nearby towns and areas, not verified departure points or accommodation recommendations.

Different outings to look into

Details drawn from individual published site records
Local exampleRecorded nearby placeRecorded accessFollow the evidence
Allendale East CaveAllendale EastShoreRecorded source ↗
Blue Lake (Mount Gambier)Mount GambierShoreRecorded source ↗
Black HoleMount GambierShoreRecorded source ↗
How to use this shortlist

Choose the named outing that interests you first. Compare its recorded place and access with your accommodation plans, then obtain the actual meeting address and schedule from the provider. The site links show the underlying depth, location confidence and source notes. Similar town names or map positions do not establish that two outings can be combined in a day.

A closer look at Mount Gambier Sinkholes & Caves

Get a feel for the diving

Our Mount Gambier Sinkholes & Caves directory currently includes 36 published site records. The largest recorded category is cave/cavern (18 records). Use the mix below to decide what you would like to read about first.

The YouDive turtle introducing this destination’s guide

Mount Gambier Sinkholes & Caves: what’s in the directory?

A visual guide to recorded site types. Counts show coverage, not popularity or current availability.

Cave/Cavern18 records
Sinkhole/Cenote16 records
Freshwater Lake/River2 records

Source: published YouDive directory records for Mount Gambier Sinkholes & Caves. Bars use the same scale within this graphic; the longest is the largest category, not 100% of the destination.

A few local records to compare

Start with Allendale East Cave, Blue Lake (Mount Gambier), Black Hole. These are examples from different recorded categories, not a recommended route or a list of the best sites. Open each record for its sources, map and review notes.

One alphabetical example per recorded type, up to four types
SiteRecorded typeAccessDepth
Allendale East CaveCave/CavernShore0–24 m
Blue Lake (Mount Gambier)Freshwater Lake/RiverShoreMaximum recorded: 77 m
Black Hole

Details need confirmation

Sinkhole/CenoteShoreDepth not recorded

How the recorded depths compare

A dot shows a recorded maximum. A line joins the recorded minimum and maximum when both are available. These are site descriptions, not target depths or certification limits.

Blue Lake (Mount Gambier)Maximum recorded: 77 m
Black HoleDepth not recorded

No mark plotted: depth is missing.

The table above contains the same depth values. Depth alone cannot establish suitability, and records may require correction. Source: the linked site records.

Build a South Australian trip around your interests

A jetty, a boat outing, a seasonal wildlife visit and an inland training objective are different starting points. Name the experience first, then use the records to explore its practical setting.

Separate the attractions

Do not assume that two experiences grouped within a state are easy to combine in one day. Write down the town, meeting point and time commitment for each. For a mixed group, ask which activities actually accommodate divers and non-divers together. A famous animal or landmark may bring you to a region, but the booking still needs to describe what each person will do.

Check the environment behind the name

A site category is a starting point for learning more. In particular, an inland or cave-related record does not make an outing an ordinary open-water dive. Discuss access permissions, the intended environment and appropriate qualifications with a relevant provider. Choose training to suit the activity rather than trying to make a planned holiday fit whatever qualification you already hold.

Give seasonal plans a second reason to travel

If one wildlife event is the main attraction, research its current visitor information and the exact activity being offered. Keep another worthwhile part of the visit in your plans. Arrange equipment and support before treating dates as final, and ask what happens if the intended outing changes. A recent observation and a broad seasonal pattern answer different questions.

Three conversations worth having before you book

Jetty or coastal visit

What access and equipment arrangements apply now?

Keep the site record and local reply together.

Wildlife-focused trip

What is the actual activity and current visitor advice?

Do not treat a season as a sighting guarantee.

Inland objective

Which permissions and training apply to this environment?

Check with a relevant specialist provider.

From “that looks lovely” to a plan

Make Mount Gambier Sinkholes & Caves your kind of dive trip

Find your starting point, meet the local options and keep your ideas together. You do not need to have the whole trip worked out yet.

Where are you on your diving journey?

These are learning paths to explore, not prerequisites for every local site. Confirm the actual course, instructor and your readiness with the provider.

People to talk to about Mount Gambier Sinkholes & Caves

These profiles are based in the region or have a sourced link to one of its sites. Shown alphabetically, not as a quality ranking. Ask about the specific trip or course you want.

Listed in this region

Dive Experience

Mount Gambier

A Mount Gambier business serving the region's cave and sinkhole diving community, including equipment and gas support.

Meet this operator →

Compare these local operators →

Browse all operator profiles in this state or territory →

Let’s put the pieces together

Start with the place and your questions. Add dates and prices once you have spoken with the people running the trip.

Open my trips

Creates a new trip with this destination, useful reading and starter questions. Saved on this browser; export a backup from My trips.

THE LOCAL PLANNING BRIEF

Understand the options around Mount Gambier Sinkholes & Caves

A specialist collection, not an open-water shortlist

The words sinkhole and cave should prompt a specific training and access discussion. Do not assume an inland record is publicly accessible or suitable for an ordinary recreational holiday dive. Establish the responsible site manager, current permission process and qualifications required for the exact activity. A directory description, photograph or map cannot authorise access or replace specialist instruction.

One useful question: Who manages the specific site, and what current permissions and training requirements apply to the proposed activity?

What this regional directory records

There are 36 published site records in Mount Gambier Sinkholes & Caves. The recorded categories include cave/cavern (18), sinkhole/cenote (16), freshwater lake/river (2). These categories reflect the database; they are not a ranking, a conditions report or an assessment of your suitability.

Use the Mount Gambier Sinkholes & Caves site cards to compare recorded access and depth, then open the individual pages for the map accuracy and source notes. Sites grouped in a region are not necessarily close enough to combine in one day.

Research operators in South Australia →

Ask before booking

  1. Is the proposed activity open water or an overhead environment?
  2. Who manages access and where can we check current rules?
  3. Which equipment and transport arrangements must be booked ahead?

Save the answers with the contact name and date. Separate confirmed arrangements from items still waiting for a reply.

Record your trip questions →

Questions, answered

How do I choose a dive in Mount Gambier Sinkholes & Caves?

Begin with the individual site and its source notes, then discuss the proposed trip with a local provider. The 36 published records are research options, not a list of trips available today. Match the plan to your training, recent experience and the operator’s current requirements.

When should I visit Mount Gambier Sinkholes & Caves for diving?

Choose dates with a provider who runs the activity you want, then discuss seasonal patterns, recent conditions and alternative itineraries. A generic best-month claim cannot establish the conditions at your exact site or guarantee a wildlife encounter.

Can I use these maps to enter or navigate a dive site?

No. Recorded and approximate map positions support orientation only. Confirm the exact access, permissions, meeting point and route with the responsible local provider or manager.

Regional planning context: South Australian Tourism Commission — regional trip information ↗. Directory counts come from published YouDive records. Individual site claims remain subject to their source and review notes.

Continue exploring this state

Dive sites in this region

Find local operators

Search within Mount Gambier Sinkholes & Caves, or narrow the list to a recorded dive type. Open a site for its map, sources and access notes.

36 matching site records. Listings do not confirm current access or availability.

SAYouDive mascot illustration; not a photograph of the siteCave/Cavern

Mount Gambier Sinkholes & Caves

Dave's Cave

A small forestry cave where the ladder-and-pulley entry is half the adventure.

ShoreDepth not recorded
Details need confirmation
SAYouDive mascot illustration; not a photograph of the siteSinkhole/Cenote

Mount Gambier Sinkholes & Caves

Ela Elap

A large, deep and unusually cold (10-11°C) sinkhole with excellent deep visibility – closed at present.

ShoreDepth not recorded
Details need confirmation
SAYouDive mascot illustration; not a photograph of the siteCave/Cavern

Mount Gambier Sinkholes & Caves

Hann's Cave

An Advanced Cave site on the CDAA register – closed at present.

ShoreDepth not recorded
Details need confirmation
SAYouDive mascot illustration; not a photograph of the siteSinkhole/Cenote

Mount Gambier Sinkholes & Caves

Hells Hole

A wild forest sinkhole with a 30 m vertical drop to the water and a floor strewn with fallen trees.

ShoreUp to 25 m
Details need confirmation
SAYouDive mascot illustration; not a photograph of the siteSinkhole/Cenote

Mount Gambier Sinkholes & Caves

Horse and Cart

A quiet, shallow farm sinkhole reached by ladder – easy to arrange and pair with nearby Tea Tree.

ShoreDepth not recorded
Details need confirmation
SAYouDive mascot illustration; not a photograph of the siteCave/Cavern

Mount Gambier Sinkholes & Caves

Max's Hole

A 20 m ladder shaft to two small, silt-choked pools – closed pending new access arrangements.

ShoreDepth not recorded
Details need confirmation
SAYouDive mascot illustration; not a photograph of the siteCave/Cavern

Mount Gambier Sinkholes & Caves

McKay's Shaft

A Cave-rated shaft site on the CDAA register – closed at present.

ShoreDepth not recorded
Details need confirmation
SAYouDive mascot illustration; not a photograph of the siteSinkhole/Cenote

Mount Gambier Sinkholes & Caves

One Tree

A deep farm sinkhole where the water clears below 20 m and an old harvester rests on the bottom.

ShoreDepth not recorded
Details need confirmation
SAYouDive mascot illustration; not a photograph of the siteCave/Cavern

Mount Gambier Sinkholes & Caves

Stinging Nettle Cave

A sidemount-only restriction at 10 m that opens into a surprisingly large cave.

ShoreDepth not recorded
Details need confirmation
SAYouDive mascot illustration; not a photograph of the siteSinkhole/Cenote

Mount Gambier Sinkholes & Caves

Tea Tree

A dark, shaded farm sinkhole with eels among fallen timber – easy to arrange with the landowner.

ShoreDepth not recorded
Details need confirmation
SAYouDive mascot illustration; not a photograph of the siteSinkhole/Cenote

Mount Gambier Sinkholes & Caves

Ten Eighty

A large, clear sinkhole with passages at each end – closed to divers at present.

ShoreDepth not recorded
Details need confirmation
SAYouDive mascot illustration; not a photograph of the siteSinkhole/Cenote

Mount Gambier Sinkholes & Caves

The Bullock Hole

A Basic Cave farm sinkhole on the CDAA register – closed at present.

ShoreDepth not recorded
Details need confirmation