Helix Reef is a Marine National Park (green zone) reef in the central Great Barrier Reef, roughly 80 km east-northeast of Townsville. This protected sanctuary boasts excellent coral cover and clear, nutrient-rich waters that attract a dense concentration of marine life. The reef features sloping coral bombies, sand gutters, and a shallow reef edge ideal for snorkelers. It is known for encounters with large bumphead parrotfish grazing on coral, schools of trevally and barracuda, and frequent sightings of white-tip reef sharks. Its protected status has helped maintain healthy coral communities, making it a rewarding offshore snorkel destination for those seeking a less crowded reef experience.
Helix Reef
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Showing last known conditions
Wave Height 0.1 mSwell Period 4.8 sWind Speed 8.2 knPrecipitation 3.3 mmTidal Phase flood
Last evaluated
The spot
Community-maintained
Community contribution: submitted by Daniel
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Low risk: Ocean currents
The reef is exposed to open ocean currents. Swimmers should be confident in moderate current conditions.
Low risk: Boat traffic
Boat traffic from charter and private vessels in the area.
Low risk: Marine stingers
Stinging marine organisms including jellyfish may be present, particularly in the summer months.
Low risk: Sharp coral
Sharp coral formations close to the surface along the reef edge.
Wildlife Guide
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Getting in
Snorkel tour
Entry
Helix Reef is located approximately 80 km east-northeast of Townsville in the central Great Barrier Reef. It is a Marine National Park (green) zone, accessible only by chartered boat tours or private vessels departing from Townsville. Most visitors access the reef via day trip operators from Townsville or nearby ports.
Parking & facilities
Parking available at the Townsville marina or departure points for charter boats.
toilets
Access is via commercial tour operators — fees vary by operator. A Marine Park permit is required for private vessels.
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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