The Blow Hole near St Helens is a dramatic coastal feature on Tasmania's northeast coast, where ocean swells surge into a rock crevice and erupt skyward in a powerful spray. Located within reach of the Bay of Fires and Binalong Bay, this area features brilliant orange-lichen-covered granite boulders and crystal-clear turquoise waters. Snorkelers can explore calm, protected rocky bays nearby, weaving between boulders in shallow, gin-clear water with excellent visibility over sandy patches and reef.
Blow Hole (near St Helens)
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Showing last known conditions
Wave Height 0.3 mSwell Period 6.6 sWind Speed 7.1 knPrecipitation 3.9 mmTidal Phase slack
Last evaluated
DANGER: Explicit Risks Present
Blow Hole (near St Helens) has hazards marked as danger. Entering the water here means you may face serious risks to your personal safety.
- Surging swells at blowhole danger
The blowhole itself is extremely dangerous during large swells — powerful surges can sweep people off rocks.
The spot
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Community contribution: submitted by Daniel
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High risk: Surging swells at blowhole
The blowhole itself is extremely dangerous during large swells — powerful surges can sweep people off rocks.
Moderate risk: Slippery granite rocks
Granite boulders become very slick when wet, posing a slip and fall risk.
Low risk: Changing tides
Tidal flow can affect entry and exit points, with exposed rocks at low tide and deeper surge at high tide.
Wildlife Guide
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Getting in
Shore entry
Entry
Located near St Helens on Tasmania's northeast coast, approximately 11 km south of St Helens township. Follow the Tasman Highway (A3) south towards Binalong Bay and the Bay of Fires area. The Blow Hole is accessible via short walking tracks from coastal parking areas.
Parking & facilities
Limited roadside parking available near the Blow Hole overlook and adjacent beaches along the coastal road.
parking
No fees for access.
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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