Bubble Cave lies off North Solitary Island on the NSW North Coast, a 5 m deep cave where an air pocket collects at the ceiling — hence its name. Accessed by boat, this site features a series of rocky fingers and gullies descending to 15 m, with a dramatic cave entrance often swarming with fish. The surrounding gutters host thousands of anemones, clownfish species, nudibranchs, and the odd guineafowl moray eel. A nearby underwater trail (with plaques) and remnants of a 1988/89 shipwreck add to the adventure. Best suited to intermediate snorkellers and freedivers with boat access.
Bubble Cave
IntermediateGO
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Showing last known conditions
Wave Height 0.5 mSwell Period 5.5 sWind Speed 9.0 knPrecipitation 0.0 mmTidal Phase flood
Last evaluated
The spot
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Community contribution: submitted by Daniel
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Moderate risk: Swell exposure
Open ocean site on the western side of North Solitary Island; exposed to ocean swell and surge, especially inside the cave.
Moderate risk: Strong currents
Ocean currents around offshore islands can be unpredictable; check conditions before entering.
Low risk: Boat traffic
Access is by boat only; watch for dive boats and mooring lines in the area around North Solitary Island.
Low risk: Depth changes
Depth drops from 5 m at the cave entrance to 15 m on the sand; snorkellers should be competent in deeper water.
Low risk: Rocky terrain
The cave entrance and gutters feature medium-sized round rocks; uneven footing and sharp edges possible.
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Getting in
Boat
Entry
Bubble Cave is on the western side of North Solitary Island, about 15 km offshore from Wooli, NSW. The only practical access is via the Wooli Dive Centre charter boat, which runs trips with a minimum group of 6 divers/snorkellers. Private boat access is possible if you have your own vessel; the site has a dedicated mooring.
Parking & facilities
Free street parking is available near the Wooli boat ramp and wharf area along Main Street, Wooli.
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Charter fees apply via Wooli Dive Centre (approximately $70–$100 per person depending on group size). No park entry fees.
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About this data
- Conditions last evaluated
- Spot data last updated
- Data sources
- Open-Meteo (marine & weather conditions), tide predictions via UTide, community contributors (descriptions, hazards, marine life).
- License
- Spot content licensed under CC BY-SA 4.0. How's the Spot is open source.
Weather & swell ┬╖ Open-Meteo marine & weather APIs Tides ┬╖ UTide harmonic analysis Sea & safety ┬╖ community reports