Cave, Cavern & Sinkhole Dives in Victoria

From the Mount Gambier sinkholes to the Nullarbor caves and Christmas Island's sea caves. Many sites require cave-diving certification, permits or bookings; the technical notes on each page explain what is needed.

All states QLD NSW VIC TAS SA WA NT Territories

42 sites

Sort:Default Most dived Deepest Shallowest A–Z

WallMax 20 m

12lb Reef

Port Phillip Heads · VIC

A short, overhang-riddled wall at 8–20 m on the edge of Lonsdale Bight named for a 12-pound crayfish – soft corals,…

Advanced Open WaterIntermediate

Cave/CavernMax 25 m

Blowhole & Thunder Point, Lady Julia Percy Island

Portland & the West · VIC

An 18 m wide sea cave penetrating deep under Deen Maar, diveable only in a flat calm – few have seen it, fewer have…

Advanced Open WaterExpert/Technical

ReefMax 25 m

Boarfish Reef

Port Phillip Heads · VIC

Multi-site reef in Lonsdale Bight with caves, swim-throughs, a 4 m upright admiralty anchor in 10 m and a 400 m sponge…

Advanced Open WaterIntermediate

ReefMax 8 mShore

Bridgewater Bay, Blairgowrie

Mornington Peninsula · VIC

Two dives from one beach – the sea cave and ledges of The Bridge and the long reef of Koreen Point; a sandy exit makes…

Advanced Open WaterAdvanced

ReefMax 7 mShore

Cape Schanck West (Pulpit Rock)

Mornington Peninsula · VIC

Gullies, gorges and bommies around a basalt headland with The Arch swim-through and Shark Cave full of Port Jacksons;…

Advanced Open WaterAdvanced

WallMax 30 m

Dannevig Island North East

Wilsons Promontory · VIC

A large multi-entrance boulder cave at 25 m and a field of massive granite swim-throughs on the northern tip of…

Advanced Open WaterAdvanced

Pinnacle/BommieMax 25 m

Deep Pinnacles

Port Phillip Heads · VIC

Scattered bommies, valleys and small swim-throughs in 16–25 m on the outer Lonsdale reef line, glowing with yellow…

Advanced Open WaterIntermediate

WallMax 55 m

Devils Drop Off

Port Phillip Heads · VIC

A 12-to-30 m drop-off on the Nepean side with a long soft-coral overhang at 27 m and the most dependable blue devils at…

Technical (decompression)Advanced

ReefMax 10 mShore

Diamond Bay, Sorrento

Mornington Peninsula · VIC

The most accessible back-beach dive: ledges, kelp, bommies and caves around a small sandy cove with a staircase entry.

Advanced Open WaterAdvanced

ReefMax 20 m

Eagle Rock, Warrnambool

Shipwreck Coast & Warrnambool · VIC

Five-metre-deep crevasses with walls and caves running out to a lone rock off the golf course cliffs – the most rugged…

Advanced Open WaterAdvanced

ReefMax 30 m

Fenwick Bight

Wilsons Promontory · VIC

Granite boulder fringe with vertical walls and small caves towards South Point; a sheltered-end second dive at the…

Advanced Open WaterAdvanced

WallMax 60 m

Inner Corsair Wall

Port Phillip Heads · VIC

Ledge-and-cave wall from a kelp-topped 10 m reef down to 60 m between Nepean Wall and Corsair Rock, with RMS Australia…

Technical (decompression)Expert/Technical

WallMax 55 m

Kanowna Island, South East

Wilsons Promontory · VIC

A granite wall plunging to 55 m with caves and swim-throughs on the exposed corner of Kanowna Island, with prolific…

Technical (decompression)Expert/Technical

Pinnacle/BommieMax 40 m

Knawesome Bommie

Port Phillip Heads · VIC

An 18 m-high bommie rising from 40 m to 22 m in the channel off Shortland Bluff, with a ship's anchor grown into its…

Deep/Advanced + experienceAdvanced

IslandMax 25 m

Lady Julia Percy Island (Deen Maar)

Portland & the West · VIC

Victoria's largest fur seal colony under basalt cliffs and sea caves 8 km offshore – the wildest big-animal dive in the…

Advanced Open WaterAdvanced

ReefMax 25 m

Larkin Cove

Wilsons Promontory · VIC

Low granite swim-throughs and a 12 m cave at 7 m in a quiet quartz-sand cove on the eastern Prom.

Advanced Open WaterIntermediate

WreckMax 25 m

Loch Ard

Shipwreck Coast & Warrnambool · VIC

Victoria's most famous shipwreck: bow, plating with deadeyes, railway iron and cargo under the cliffs of Mutton Bird…

Advanced Open WaterAdvanced

Shore/Rock PlatformMax 25 mShore

Loch Ard Gorge

Shipwreck Coast & Warrnambool · VIC

Dive out of the most famous gorge on the Great Ocean Road between limestone walls and caverns that fall to 25 m at the…

Advanced Open WaterAdvanced

Shore/Rock PlatformMax 7 mShore

London Bridge, Portsea

Mornington Peninsula · VIC

Reef, gullies and small caves around a natural rock arch on the open Bass Strait coast; lobsters, seadragons and sharks…

Advanced Open WaterAdvanced

ReefMax 18 m

Lonsdale Arches

Port Phillip Heads · VIC

Natural sandstone arches and tunnels at 12–18 m on the outer Lonsdale reef, wide and safe to swim through and…

Open WaterIntermediate

WallMax 65 m

Nepean Wall

Port Phillip Heads · VIC

The vertical Nepean side of The Rip: a boomerang-shaped trench whose northern wall drops from 18 m to 65 m through…

Technical (decompression)Advanced

WallMax 60 m

North Wall

Port Phillip Heads · VIC

Deep wall on Spectacular Reef off Shortland Bluff – overhangs, small caves and swim-throughs from 19 m to beyond 60 m,…

Technical (decompression)Expert/Technical

WallMax 66 m

North Wall Corner

Port Phillip Heads · VIC

The 90-degree corner of Lonsdale Wall: towering split faces on two sides dropping from 19 m to 66 m, with blue devils…

Technical (decompression)Expert/Technical

WallMax 65 m

Outer Corsair Wall

Port Phillip Heads · VIC

The outermost Nepean-side wall: ledges, caves and drop-offs from a 10 m kelp top to 65 m facing Bass Strait, with the…

Technical (decompression)Expert/Technical

WallMax 30 m

Paradise Wall

Port Phillip Heads · VIC

A stepped wall with shallower upper terrain and deeper drop-offs. Confirm the planned route, depth and slack-water…

Route-dependent — confirm with operatorIntermediate

WallMax 26 m

Portsea Back Beach Wall

Port Phillip Heads · VIC

An east–west calcarenite wall in Bass Strait off Portsea back beach with swim-throughs, unafraid crayfish walking in…

Advanced Open WaterIntermediate

WallMax 30 m

Ramsbotham Rocks

Wilsons Promontory · VIC

Caves and swim-throughs among giant granite boulders at 20–30 m on the sheltered north-east corner of Great Glennie;…

Advanced Open WaterAdvanced

Cave/CavernMax 10 mShore

Ramsden Cave

Surf Coast & Great Ocean Road · VIC

A 60 m sea cave hidden at the base of the Cape Patton cliffs, reached by an exposed reef swim past the Speculant wreck…

Advanced Open WaterExpert/Technical

WallMax 20 m

Refuge Cove, North Wall

Wilsons Promontory · VIC

Boulder swim-throughs, caves and overhangs along the north shore of the Prom's natural harbour, with salmon hunting…

Advanced Open WaterIntermediate

ReefMax 10 m

Seal Colony, Cape Bridgewater

Portland & the West · VIC

Dive with a mainland fur seal colony under 130 m cliffs, ten minutes from the Cape Bridgewater beach ramp – western…

Open WaterIntermediate

WallMax 65 m

Skull Rock

Wilsons Promontory · VIC

Sheer granite walls dropping past 65 m beneath the Prom's landmark sea-cave island, in the clearest water in Victoria,…

Technical (decompression)Advanced

WallMax 70 m

South East Point (Wilsons Promontory Lighthouse)

Wilsons Promontory · VIC

Granite walls plunging to 70 m with caves and swim-throughs directly beneath the Wilsons Promontory Lighthouse; the…

Technical (decompression)Expert/Technical

Cave/CavernMax 15 mShore

Spray Point Caverns, Blairgowrie

Mornington Peninsula · VIC

Deep undercuts, overhangs and sea caverns packed with crayfish and abalone on the Blairgowrie ocean coast.

Advanced Open WaterAdvanced

Shore/Rock PlatformMax 6 mShore

St Pauls Rock, Sorrento

Mornington Peninsula · VIC

A tunnel under the rock stack and a maze of small caves in shallow kelp reef on the Sorrento ocean coast.

Advanced Open WaterAdvanced

Shore/Rock PlatformMax 6 mShore

Table Rock, Ricketts Point

Melbourne & Port Phillip Bay · VIC

The sanctuary's best terrain: undercut ledges and a cave-like hollow under a sandstone headland, with bigger fish and…

Open WaterBeginner

WallMax 60 m

The Cave (Lonsdale Wall)

Port Phillip Heads · VIC

A truck-sized cavern in the face of Lonsdale Wall at 30 m, at the ocean end of the system – ebb-slack only, shipping…

Technical (decompression)Expert/Technical

Cave/CavernMax 25 m

The Nursery, Lawrence Rocks

Portland & the West · VIC

Four sea caves at 14 m in a sponge-lined boulder field, including The Cockpit with its air chamber for four divers –…

Advanced Open WaterAdvanced

WallMax 50 m

The Playground

Port Phillip Heads · VIC

A less-visited east–west wall at the entrance with small caves and overhangs from 15 m to 50 m, dived only on the flood…

Technical (decompression)Expert/Technical

WallMax 30 m

The Swim Through

Port Phillip Heads · VIC

A short, safe cleft through the Lonsdale Wall face at 25–30 m, its walls carpeted in zoanthids and anemones – a natural…

Advanced Open WaterAdvanced

WallMax 30 m

Toms Cave

Port Phillip Heads · VIC

A short natural tunnel entering the Lonsdale Wall at 30 m and exiting at 22 m – an easy, torch-lit swim-through for…

Advanced Open WaterAdvanced

ReefMax 30 m

Twelve Apostles Marine National Park – Thunder Cave & outer reefs

Shipwreck Coast & Warrnambool · VIC

Sea caves, arches and giant kelp under the Twelve Apostles cliffs in a no-take park – Thunder Cave's crayfish-filled…

Advanced Open WaterAdvanced

WallMax 60 m

Waterloo Bay, North Wall

Wilsons Promontory · VIC

A 2 km granite wall of 10 m boulders, swim-throughs and overhangs from 10 m to 60 m with perch clouds and zoanthid…

Technical (decompression)Advanced