Knuckle Reef is a pristine outer reef destination in the Whitsunday group of the Great Barrier Reef, offering superb snorkelling with fewer crowds than neighbouring Hardy Reef. This platform-accessible reef system features impressive coral bommies, expansive plate corals, and vibrant marine gardens in crystal-clear oceanic waters. The reef's position on the outer continental shelf delivers excellent water clarity, making it ideal for spotting colourful reef fish, rays, and turtles. Day tours from Airlie Beach bring snorkellers to a floating pontoon or mooring, where they can spend hours exploring the coral gardens that surround this less-visited gem of the southern Great Barrier Reef.
Knuckle Reef
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Wave Height 0.1 mSwell Period 2.5 sWind Speed 7.8 knPrecipitation 1.6 mmTidal Phase flood
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Community contribution: submitted by Daniel
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Moderate risk: Outgoing tide current
Strong currents can sweep across the outer reef, particularly on falling tides. Snorkellers should stay within the marked pontoon area or follow guide instructions.
Low risk: Sharp coral
Sharp coral formations are present throughout the reef. Touching or standing on coral is prohibited and dangerous.
Low risk: Wind chop and swell
The outer reef platform can be subject to strong winds and choppy conditions, particularly in winter, affecting snorkel conditions.
Low risk: Marine stingers
Marine stingers including fire coral and stonefish are present on the reef. Wearing a stinger suit (provided by most operators) is recommended.
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Getting in
Snorkel tour
Entry
Knuckle Reef is an outer reef site in the Whitsunday group, approximately 60 km offshore from Airlie Beach, Queensland. Access is exclusively by commercial day tour catamaran or ocean raft from Airlie Beach or Shute Harbour. Some operators also combine Knuckle Reef with Hardy Reef visits or scenic helicopter flights.
Parking & facilities
Parking available at Airlie Beach port or Shute Harbour departure points (paid parking lots).
toilets
Day tour costs typically range from $200–$300 AUD per adult, including snorkel gear, lunch, and reef tax. Some operators run a pontoon platform with additional activities.
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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