Tucked along the wild western side of Dirk Hartog Island within the Shark Bay World Heritage Area, Louisa Bay is a remote snorkeling haven accessible only by boat or 4WD. Its sheltered turquoise waters lap against white sand, with vibrant coral communities thriving just 200 metres offshore — ideal for float-and-gaze snorkeling over patches of coral bommies. The bay's isolation means you'll often have it to yourself, surrounded by rugged island landscapes and the incredible biodiversity of Australia's westernmost national park.
Louisa Bay
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Showing last known conditions
Wave Height 0.2 mSwell Period 8.2 sWind Speed 5.1 knPrecipitation 0.2 mmTidal Phase ebb
Last evaluated
The spot
Community-maintained
Community contribution: submitted by Daniel
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Logged by the community, confirmed by mods
Moderate risk: Remote location
Located on the remote western side of Dirk Hartog Island with no immediate medical facilities; self-sufficiency required.
Low risk: Limited access by tides
Boat access to the beach and coral areas can be tide-dependent; check local tide charts before visiting.
Low risk: Marine stingers
Box jellyfish and other marine stingers may be present in warmer months (Oct-May).
Wildlife Guide
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Getting in
Boat
Entry
Louisa Bay is on the western side of Dirk Hartog Island, within Dirk Hartog Island National Park. Access is by private or charter boat from Denham or the mainland via the South Passage. A 4WD vehicle with ferry transfer to the island is another option, followed by a challenging drive across the island.
Parking & facilities
No designated parking at the bay itself. Park at the Dirk Hartog Island ferry landing or at the island lodge and continue by boat or 4WD track.
toilets
Entry to Dirk Hartog Island National Park requires a park entry fee (valid pass) plus ferry transfer fees if crossing from the mainland.
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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