Cathedral Cave is a spectacular sea cave carved into the rugged dolerite cliffs of Tasmania's North East coast. Named for its cathedral-like chamber with a natural skylight opening in the ceiling, this spot offers adventurous snorkelers a chance to explore dramatic rock formations, underwater arches, and kelp-forested reef systems surrounding the cave entrance. The cave opens into the Southern Ocean, and on calm days the clear waters reveal a maze of boulder gardens and sponge gardens that shelter an array of temperate marine life.
Cathedral Cave
AdvancedMAYBE
MAYBE
Fair. Experienced snorkellers only.
Showing last known conditions
Wave Height 0.7 mSwell Period 11 sWind Speed 1.8 knPrecipitation 9.0 mmTidal Phase unknown
Last evaluated
DANGER: Explicit Risks Present
Cathedral Cave has hazards marked as danger. Entering the water here means you may face serious risks to your personal safety.
- Swell Surge Inside Cave danger
Ocean swells surge into the cave chamber, creating sudden water level changes and strong turbulence near the walls. Dangerous on moderate+ swell days.
The spot
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Community contribution: submitted by Daniel
Know before you go
Logged by the community, confirmed by mods
High risk: Swell Surge Inside Cave
Ocean swells surge into the cave chamber, creating sudden water level changes and strong turbulence near the walls. Dangerous on moderate+ swell days.
Moderate risk: Sharp Dolerite Rock
Jagged dolerite boulders and encrusted ledges line the cave interior and reef — cuts and scrapes are very easy to sustain.
Moderate risk: Limited Exit Access
The cave entrance can be partially blocked by surge and swell, making exit challenging. Exit timing must be carefully chosen between wave sets.
Moderate risk: Cold Water Temperature
Southern Ocean water temperatures rarely exceed 15°C even in summer, posing hypothermia risk without adequate wetsuit protection.
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Getting in
Shore entry
Entry
Cathedral Cave is located along the coastline of North East Tasmania, accessible via the Tasman Highway then turning onto unsealed coastal roads near the Freycinet Peninsula area. The cave is not signposted and requires local knowledge or GPS coordinates to find the trailhead. A steep, rough walk over boulder fields and foreshore rocks leads to the cave entrance.
Parking & facilities
Limited roadside parking is available near the coastal access point. No formal car park. Park well clear of narrow roads and farm gates.
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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