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South West Rocks · about 8 km from South West Rocks

Fish Rock Cave

  • Max depth24 m
  • CertificationCavern
  • Water temperature≈ 17–25 °C, varies with the seasonestimated, no reports yet
  • SpecialExperienced divers

What it looks like

All 3 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

You enter the cave through the deep entrance at 24 m and swim through a tunnel. You ascend one of the two vertical chimneys, have a quick chat in the bubble cave and then come out into the light zone.

Profile and sections

You enter the cave through the deep entrance at 24 m and swim through a tunnel. You ascend one of the two vertical chimneys, have a quick chat in the bubble cave and then come out into the light zone. Grey nurse sharks are here all year, except for a few weeks around March and April; in the warmer months hammerheads patrol Larry's Ledge.

At ~120 m it is one of the largest ocean caverns in the southern hemisphere.

Practical: you only get there by boat with a dive centre, which matches your dives to your experience.

Depth and profile
Deep entrance at -24 m · shallow entrance at ~-10 m, ~5 m wide · passage ~120 m · the dives around the rock range from -7 to -35 m
Configuration
Standard recreational kit with a good light. Divernet recommends at least 20 dives for the cave; the operator calls it best suited for advanced divers.
Who can dive where
  • CaveAt least Cavern
  • Whole caveConfigurations: Backmount / twinset / Sidemount / CCR / Small cylinders / no-mount (speleo sumps)
  • Whole caveGoes down to 24 m (trimix or deco may be needed) · doesn't decide who may dive
  • Whole caveExperienced divers only · doesn't decide who may dive
Experienced diversEntry or dive feeThrough a dive centre or guide

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.

How to get there

By boat with Fish Rock Dive Centre from South West Rocks; Fish Rock lies ~2 km off the coast at Smoky Cape.

Plan your route ↗

Around Fish Rock Cave

FillsNo fill station known nearby
Where to sleepAround South West Rocks on Booking.com ↗

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Going to South West Rocks with your team?

Marcel finds the sites that match your team's certifications.

Plan a trip
Something wrong, or do you know more?Depth, access, parking, the current situation: let us know.
Sources, sharing and disclaimer

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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 Fish Rock Dive Centre's site (dive sites, FAQ, contact), Divernet's South West Rocks guide and NSW Health (hyperbaric unit), Nov 2026. Pin of Fish Rock from OpenStreetMap. ~ = estimate.