South Australia · 15 sites
Limestone Coast dive sites
South of the Coorong the Limestone Coast has the shallow reefs and jetties of Robe, Beachport and Port MacDonnell, with rock lobster, blue devils and sea sweep, and the freshwater ponds inland at Mount Gambier. It is dived mainly by locals and by cave divers on their way to the sinkholes.
- Sites
- 15
- Wrecks
- 3
- Shore
- 5
- Boat
- 5
- Beginner
- 5
- Deepest
- 12 m
Conditions outlook · Late September – October 2026
Written 27 September 2026The coastal sites (Port MacDonnell, Cape Northumberland) need the rare calm spells that come with late summer and autumn; spring is unreliable. The sinkholes inland are unaffected and 15 °C year-round.
Getting there
Four to five hours from Adelaide. Shore and jetty dives with easy parking.
When to go
Late summer and autumn calm spells.
Water & suit
Summer 16-19 °C · winter 12-13 °C. 7 mm wetsuit with hood, gloves and boots; drysuit in winter
Nearest chamber: Royal Adelaide Hospital hyperbaric medicine unit (Adelaide) – about 450 km by road from Mount Gambier; evacuation is normally by aeromedical retrieval (RFDS/MedSTAR) via Mount Gambier Hospital. The Alfred (Melbourne) is a similar distance. DAN/Divers Emergency Service 1800 088 200.
Most recorded marine life in Limestone Coast
- Sweep 10
- Leatherjackets 9
- Rays 7
- Wrasse 7
- Flathead 6
- Southern rock lobster 6
- Sponges 5
- Abalone 3
- Ascidians 3
- Blue-throat wrasse 3
- Crabs 3
- Cuttlefish 3
- Kelp 3
- Old wives 3
Plan a dive trip to Limestone Coast →Find your diveCompare the top 4 side by sideNew diver? Start here
The most-dived sites in Limestone Coast
Suggested trip
A 3-day dive trip to Limestone Coast
Built from the sites in this region: an easy start, the signature dives, then something deeper or further. Swap days around the weather; the site pages say which winds and swell close each one.
Build your own Limestone Coast plan: pick days, level and must-dive sites →Day 1 · Settle in
Start with Limestone Coast's easier shore dives: check your weighting, get used to the water temperature and dive the sheltered side of the coast.
- Beachport JettyJetty/Pier · Max 7 m · Open Water
- Cape Jaffa JettyJetty/Pier · Max 3 m · Open Water
Day 2 · The signature dives
A charter day on the sites people travel to Limestone Coast for, including Cape Jaffa – Margaret Brock Reef.
- Cape Jaffa – Margaret Brock ReefReef · Max 12 m · Open Water
- Geltwood WreckWreck · Depth not published · Advanced Open Water
Day 3 · Deeper or further
For divers with the certification and the weather: the deeper walls, pinnacles or less-visited sites of Limestone Coast.
- Port MacDonnell BreakwaterMuck/Sand · Max 5 m · Open Water
- Robe – Guichen Bay and Robe JettyMuck/Sand · Max 6 m · Open Water
Dive centres and charters in Limestone Coast
All South Australia operators →Operators recorded as running sites in this region. Each profile lists the specific sites it goes to.
Map of Limestone Coast dive sites
Click a pin for the site. 3 sites without published coordinates are not shown.
Loading map…
12 pinned sites. Pins marked approximate on their pages show the general area only; not for navigation.
All 15 Limestone Coast dive sites
All Limestone Coast sites at a glance
15 sites in Limestone Coast · click a column to sort
| Admella Wreck (Carpenter Reef) | Wreck | Max 8 m | Advanced Open Water | Boat | Expedition |
| Beachport – Post Office Rock | Reef | Max 6 m | Open Water | Shore | Rare |
| Beachport Jetty | Jetty/Pier | Max 7 m | Open Water | Shore | Occasional |
| Cape Banks – Carpenter Rocks | Reef | Max 12 m | Advanced Open Water | Shore or Boat | Rare |
| Cape Jaffa – Margaret Brock Reef | Reef | Max 12 m | Open Water | Boat | Rare |
| Cape Jaffa Jetty | Jetty/Pier | Max 3 m | Open Water | Shore | Rare |
| Geltwood Wreck | Wreck | Depth not published | Advanced Open Water | Boat | Expedition |
| Godfrey Islands (Robe) | Island | Depth not published | Open Water | Boat | Rare |
| Kingston SE Jetty | Jetty/Pier | Max 5 m | Snorkel/Any | Shore | Rare |
| Port MacDonnell Breakwater | Muck/Sand | Max 5 m | Open Water | Shore | Rare |
| Racecourse Bay (Port MacDonnell) | Reef | Max 5 m | Open Water | Shore | Rare |
| Robe – Cape Dombey and Obelisk Reefs | Reef | Max 12 m | Open Water | Boat | Rare |
| Robe – Guichen Bay and Robe Jetty | Muck/Sand | Max 6 m | Open Water | Shore or Boat | Rare |
| Southend Reef | Reef | Max 8 m | Open Water | Shore or Boat | Rare |
| Stinky Bay (Nora Creina) | Reef | Max 8 m | Open Water | Shore or Boat | Rare |
Limestone Coast diving FAQ
How do I get to the dive sites in Limestone Coast?
Four to five hours from Adelaide. Shore and jetty dives with easy parking.
When is the best time to dive Limestone Coast?
Late summer and autumn calm spells.
How many dive sites are there in Limestone Coast?
15 documented sites, including 3 wrecks and 5 that can be dived independently from the shore. The deepest reaches 12 m.
Are there beginner dive sites in Limestone Coast?
Yes, 5 sites are rated beginner. Look for the green Beginner tag in the list below, and check the weather notes on each page before diving.
How cold is the water in Limestone Coast?
Typically 16-19 °C in summer and 12-13 °C in winter. Most divers wear 7 mm wetsuit with hood, gloves and boots; drysuit in winter.
Which dive centres operate in Limestone Coast?
Dive Experience are recorded as running sites in Limestone Coast. Each site page lists the operators known to go there.
Where is the nearest recompression chamber to Limestone Coast?
Royal Adelaide Hospital hyperbaric medicine unit (Adelaide) – about 450 km by road from Mount Gambier; evacuation is normally by aeromedical retrieval (RFDS/MedSTAR) via Mount Gambier Hospital. The Alfred (Melbourne) is a similar distance. DAN/Divers Emergency Service 1800 088 200. In an emergency call 000, then DAN Asia-Pacific on 1800 088 200.
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