Louisa Bay lies on the western side of Dirk Hartog Island within the pristine Shark Bay Marine Park, a UNESCO World Heritage site. This wild, remote beach offers exceptional snorkelling over coral bommies and limestone reefs teeming with tropical reef fish such as coral trout, blue-lined emperor, and scribbled angelfish. Accessible only by 4WD and requiring a barge crossing from Denham, the bay delivers a true wilderness snorkel experience away from crowds, with crystal-clear Indian Ocean waters and stunning white sand.
Louisa Bay (Dirk Hartog Island)
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Showing last known conditions
Wave Height 0.4 mSwell Period 11 sWind Speed 5.5 knPrecipitation 1.0 mmTidal Phase ebb
Last evaluated
DANGER: Explicit Risks Present
Louisa Bay (Dirk Hartog Island) has hazards marked as danger. Entering the water here means you may face serious risks to your personal safety.
- Isolated location danger
Remote wilderness site with no facilities, rangers, or phone reception. Emergency assistance is very far away.
The spot
Community-maintained
Community contribution: submitted by Daniel
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Logged by the community, confirmed by mods
High risk: Isolated location
Remote wilderness site with no facilities, rangers, or phone reception. Emergency assistance is very far away.
Moderate risk: Tidal currents
Snorkelling should only be done on slack tide to avoid being swept away from shore. Tides in Shark Bay can produce strong currents around the island.
Low risk: Marine stingers
Jellyfish and marine stingers may be present in warmer months (November to April).
Wildlife Guide
No wildlife notes for this spot yet.
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Getting in
Boat
Entry
Accessible only by the Dirk Hartog Island barge ferry from Denham, followed by 4WD vehicle travel along the island's sandy tracks. No public transport to the island.
Parking & facilities
Parking available at the Denham barge departure point. No parking at Louisa Bay itself — 4WD only on the island.
Camping fees apply via Dirk Hartog Island Eco Lodge booking. National park entry fees also apply. Check with Parks and Wildlife Service WA for current rates.
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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