Mount Gambier
30 site records refer to this town or area.
Look for operators around Mount Gambier →AUSTRALIAN DESTINATIONS
Explore 258 listed dive sites and find the local knowledge to help plan your visit.

Custom YouDive mascot art inspired by South Australia. An imaginative illustration, not a photograph or map of this destination.
Your bearings, in a minute
Start with the local site mix, explore the map and find people to ask about your trip.
Directory counts describe published records, not bookable trips. Location confidence is shown separately in the map list. How we check information →
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
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.
258 matching records · 258 with a map location · 0 without a usable position.
Wreck · 1–4 m
Recorded location
Wreck · 3–8 m
Approximate area
Wall · 5–21 m
Recorded location
Pinnacle/Bommie · 5–18 m
Recorded location
Cave/Cavern · 0–24 m
Approximate area
Island · 5–40 m
Approximate area
Muck/Sand · 1–8 m
Approximate area
Artificial Reef · 14–20 m
Approximate area
Jetty/Pier · 8–15 m
Approximate area
Jetty/Pier · 1–6 m
Approximate area
Jetty/Pier · 1–5 m
Approximate area
Wreck · 32–39 m
Recorded location
The local notebook
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.
30 site records refer to this town or area.
Look for operators around Mount Gambier →18 site records refer to this town or area.
Look for operators around Kingscote →16 site records refer to this town or area.
Look for operators around Marion Bay →13 site records refer to this town or area.
Look for operators around Port Lincoln →12 site records refer to this town or area.
Look for operators around Victor Harbor →11 site records refer to this town or area.
Look for operators around Glenelg →| Local example | Recorded nearby place | Recorded access | Follow the evidence |
|---|---|---|---|
| Ardrossan Barge | Ardrossan | Boat (day trip) | Recorded source ↗ |
| Allendale East Cave | Allendale East | Shore | Recorded source ↗ |
| Blue Lake (Mount Gambier) | Mount Gambier | Shore | Recorded source ↗ |
| Althorpe Island | Marion Bay | Boat (day trip) | Recorded source ↗ |
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 South Australia
Our South Australia directory currently includes 258 published site records. The largest recorded category is jetty/pier (53 records). Use the mix below to decide what you would like to read about first.

A visual guide to recorded site types. Counts show coverage, not popularity or current availability.
Source: published YouDive directory records for South Australia. Bars use the same scale within this graphic; the longest is the largest category, not 100% of the destination.
Start with Ardrossan Barge, Allendale East Cave, Blue Lake (Mount Gambier). 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.
| Site | Recorded type | Access | Depth |
|---|---|---|---|
| Ardrossan Barge | Artificial Reef | Boat (day trip) | 14–20 m |
| Allendale East Cave | Cave/Cavern | Shore | 0–24 m |
| Blue Lake (Mount Gambier) | Freshwater Lake/River | Shore | Maximum recorded: 77 m |
| Althorpe Island | Island | Boat (day trip) | 5–40 m |
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.
The table above contains the same depth values. Depth alone cannot establish suitability, and records may require correction. Source: the linked site records.
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.
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.
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.
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.
What access and equipment arrangements apply now?
Keep the site record and local reply together.
What is the actual activity and current visitor advice?
Do not treat a season as a sighting guarantee.
Which permissions and training apply to this environment?
Check with a relevant specialist provider.
From “that looks lovely” to a plan
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.
Find out how a first course works, compare your options and get comfortable asking questions.
Connect your next outing with useful reading and a conversation about the right training and support.
Explore the professional pathway and prepare better questions for a training centre.
These are learning paths to explore, not prerequisites for every local site. Confirm the actual course, instructor and your readiness with the provider.
A few operator profiles from this state or territory to start exploring. Shown alphabetically, not as a quality ranking. Ask about the specific trip or course you want.
Listed in this state or territory
Glenelg North
An Adelaide business providing training, equipment and local diving support, located near Glenelg.
Meet this operator →Listed in this state or territory
Park Holme
An Adelaide operation specialising in technical diving training, relevant to divers preparing for deep, decompression or cave diving in South Australia.
Meet this operator →Listed in this state or territory
Port Lincoln
A Port Lincoln wildlife tourism operation running great white shark cage experiences and sea lion swims. These are wildlife tourism products rather than certified scuba diving.
Meet this operator →Listed in this state or territory
Baird Bay
Open the profile for contact details and recorded services, then ask about current arrangements.
Meet this operator →Start with the place and your questions. Add dates and prices once you have spoken with the people running the trip.
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
South Australia’s regional directory includes Adelaide, peninsulas, islands and inland records. Use the access and environment information to distinguish these choices. A jetty, a coastal boat trip and a cave-related listing are different activities with different requirements; they should not share a single generic holiday plan.
There are 258 published site records across South Australia. The recorded categories include jetty/pier (53), wreck (47), reef (44), shore/rock platform (28). These categories reflect the database; they are not a ranking, a conditions report or an assessment of your suitability.
Start with one of the regional pages below. State-wide totals are useful for browsing, but the actual choice should be made at the level of an operator, a site and a proposed itinerary.
Research operators in South Australia →Save the answers with the contact name and date. Separate confirmed arrangements from items still waiting for a reply.
Record your trip questions →Compare the departure or shore meeting point, local facilities and equipment arrangements. A coastal road itinerary needs time for more than driving between map pins.
Confirm ferry or flight connections, equipment availability and how changes to transport affect the booking.
Treat overhead environments as a separate specialist subject. Directory inclusion does not establish public access or suitability for recreational open-water training.
Begin with the individual site and its source notes, then discuss the proposed trip with a local provider. The 258 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.
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.
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.
Search within South Australia, or narrow the list to a recorded dive type. Open a site for its map, sources and access notes.
258 matching site records. Listings do not confirm current access or availability.
Shore/Rock PlatformFleurieu Peninsula & Victor Harbor
Arguably the most reliable leafy seadragon dive in South Australia, among stacked granite boulders below a historic whaling…
Sinkhole/CenoteMount Gambier Sinkholes & Caves
A single midday shaft of sunlight falling into a flooded chamber 140 m long – and the birthplace of Australia's cave-diving rules.
Cave/CavernMount Gambier Sinkholes & Caves
An 18 m belayed ladder descent into a 30 m dome chamber, with the infamous 30-40 cm 'flattener' beyond – sidemount only.
Jetty/PierWhyalla & Upper Spencer Gulf
The Eyre Peninsula's leafy seadragon jetty, with large leafies camouflaged in the weed and colourful piles – an easy stop on the…
Shore/Rock PlatformKangaroo Island
Kangaroo Island's classic shore dive – colourful reef fish in the shallows and gorgonians and blue groper on the deeper western…
Cave/CavernFleurieu Peninsula & Victor Harbor
A honeycomb of limestone caves and swim-throughs beneath a 2-3 m reef top, with harlequin fish and seadragons.
WreckYorke Peninsula
One of Australia's best-preserved 19th-century composite sailing ships, lying intact on her side in 18 m with masts, rudder and…
WreckYorke Peninsula
Scattered iron barque remains among the rocks of Wardang Island's wild western shore – an atmospheric snorkel on flat days.
WreckLimestone Coast
The scattered remains of South Australia's worst shipwreck (89 lives, 1859) on an exposed Southern Ocean reef.
Cave/CavernMount Gambier Sinkholes & Caves
A steep, silty township cave with a big chamber at 24 m – a true test of buoyancy and line skills for newly rated Cave divers.
IslandYorke Peninsula
Remote island with 50+ sites, 20 m walls, seal colonies, big blue groper and historic wrecks at the mouth of Spencer Gulf.
Artificial ReefYorke Peninsula
A 1911 Sydney-built hopper barge scuttled in 1984 as a fish haven beside the protected Zanoni – no permit required and plenty of…
Jetty/PierYorke Peninsula
Deep industrial jetty head where huge schools of fish gather – boat access only and only when no ship is in port.
Jetty/PierYorke Peninsula
The quickest Yorke Peninsula jetty dive from Adelaide – shallow, easy and full of crabs, pike and rays under the piles.
Cave/CavernMount Gambier Sinkholes & Caves
A 15 m wire ladder down a 1 m solution tube into a large flooded chamber and tunnel to 33 m.
Jetty/PierLimestone Coast
A sheltered 772 m jetty in Rivoli Bay – easy pylon diving and night dives when the open Limestone Coast is blown out.
ReefFleurieu Peninsula & Victor Harbor
A large reef and bommie field behind the Bluff where seadragons are regularly seen, away from the shore-dive crowds.
ReefAdelaide Metro
Shallow scattered rock piles with some of the most colourful sponge growth off the metro coast.
ReefLimestone Coast
Prolific kelp-reef life on the rugged lobster coast around Cape Banks lighthouse and the Admella story.
ReefKangaroo Island
A fur seal colony under a sculpted sea arch – a land-based wildlife highlight, not a dive.
ReefLimestone Coast
A vast shallow reef around the old Cape Jaffa lighthouse platform – seadragons, sanctuary lobster and five historic wreck sites.
WreckFleurieu Peninsula & Victor Harbor
A shallow iron barge lost in 1880 during the salvage of the steamer Sorata, rediscovered by spearfishers in 1968.
Shore/Rock PlatformFleurieu Peninsula & Victor Harbor
Shallow ledges, caves and high bommies below the cliffs, where cleaner clingfish can be seen servicing larger fish.
IslandYorke Peninsula
A small island ringed by reef riddled with swim-throughs, chimneys and caves, a short boat ride from Marion Bay.