The Mackerel Islands — consisting of Thevenard and Direction Islands among 10 islets — sit just north of the Ningaloo Reef in the Pilbara, offering pristine fringing reefs and coral bombies accessible straight from the beach. This remote archipelago is a snorkeling paradise where you can drift over vibrant coral gardens teeming with reef fish, sea turtles, and rays. Low tides reveal calm, crystal-clear waters perfect for exploring the island's snorkel trail, with boat-accessible bommies for more adventurous explorers. An untouched wilderness with world-class marine biodiversity.
Mackerel Islands
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Showing last known conditions
Wave Height 0.1 mSwell Period 6.3 sWind Speed 12 knPrecipitation 0.0 mmTidal Phase flood
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Community contribution: submitted by Daniel
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Moderate risk: Marine stingers
Tropical marine stingers such as box jellyfish may be present in warm Pilbara waters, particularly during summer months.
Low risk: Strong currents and tides
Tidal movements around the islands can create currents, especially near reef channels and bommies. Snorkellers should be aware of changing tide conditions.
Low risk: Remote location
The islands are remote with limited immediate medical facilities. Snorkellers should be self-sufficient and carry communication equipment.
Low risk: Boat traffic near moorings
The main boat mooring area and snorkel trail sites see vessel traffic. Snorkellers should be vigilant near boat channels and mooring zones.
Low risk: Sharp coral and reef hazards
Fringing reefs and coral bombies have sharp edges. Snorkellers should wear protective footwear and avoid touching coral to prevent cuts.
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Getting in
Shore entry
Entry
Mackerel Islands are accessed via Onslow on the Pilbara coast. Fly from Perth to Onslow Airport, then take a 30-minute boat transfer operated by Mackerel Islands resort (book in advance). Alternatively, drive from Karratha (2.5 hrs) or Exmouth (4 hrs).
Parking & facilities
Parking available at the Mackerel Islands mainland depot in Onslow for guests. Secure long-term parking can be arranged through the resort.
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Accommodation packages include boat transfers. Snorkel gear can be hired from the activity centre. Contact the resort for current pricing.
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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