airliebeach.holiday · Tourism Guide
Public Butterfly Bay guide with Keyhole depth, visibility, and condition notes.
Dive Spot Guide•
Butterfly Bay Keyhole
Sheltered Butterfly Bay reef pocket for easy boat dives and snorkels.
Boat-only and usually most comfortable on settled weather and gentler tide, with the Keyhole offering calmer reef laps than more open Whitsunday sites.
About Butterfly Bay Keyhole
Butterfly Bay Keyhole is the sheltered inner reef pocket on Hook Island's Butterfly Bay, where shallow coral gardens, easy reef laps, and regular fish life make it one of the more approachable boat-based Whitsunday stops. It suits scuba and snorkel sessions on settled weather windows, with the bay usually feeling calm inside the Keyhole but less forgiving once northerly chop or stronger tidal movement pushes through the entrance.
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Research Estimate At Butterfly Bay Keyhole
Conservative baseline from public research. No community dives logged yet.
VisibilityVisibility: 5m
AccessChallenging entry effort
CoralHealthy coral
Aquatic LifeGreat variety
FacilitiesLimited facilities
CurrentLight current
Where Is Butterfly Bay Keyhole?
This spotNearby spotsExplore nearby spots on the map
Community sourced coordinates.
Butterfly Bay Keyhole Planning Details
Depth range, seasonality, and planning context.
Reported Depth
5m - 12m
Depth Note
Public Butterfly Bay guidance describes the Keyhole dive and snorkel zone from roughly 5 m down to about 12 m, with the shallowest reef suiting easy surface laps.
Best Season
Visited year-round in settled weather, with the drier months from about May to October usually offering the most consistent visibility and easier weather windows. Warm-season trips should plan for marine stinger protection.
Typical Conditions
Usually a shallow, sheltered reef dive or snorkel with mild conditions inside the Keyhole, but the bay entrance and centre can feel more active when northerlies or stronger tide move through.
Safety & Access At Butterfly Bay Keyhole
Hazards, restrictions, and access requirements.
Key Hazards
Strong current
Safety Notes
Check tide and weather before entry, use marine stinger protection in warm months, and avoid drifting away from the inner reef if current starts to run through the bay.
Access Restrictions
Boat access only. Public moorings and no-anchoring rules apply in Butterfly Bay, and the tighter Keyhole section is generally approached by smaller vessels rather than larger day boats.
Legal Notes
Butterfly Bay sits inside protected Great Barrier Reef and Whitsunday marine-park waters, including Marine National Park (Green) Zone protections at Butterfly Bay. Fishing, collecting, and anchoring in marked no-anchoring areas are not allowed.
Local Intel For Butterfly Bay Keyhole
Community notes to help plan your visit.
Scuba Diving
Scuba here is usually a relaxed reef circuit over coral and fish life rather than a deep or exposed profile, making it a common choice for easy sightseeing dives from liveaboards and day boats.
Snorkeling
The Keyhole works well for snorkellers because the reef is shallow and sheltered, but it is still best entered with boat cover and an eye on tide and wind.
Wildlife at Butterfly Bay Keyhole
Species commonly reported at this site, with direct links into their wildlife guides.
Recent Logged Visits At Butterfly Bay Keyhole
Community dive logs and visit reports for this site.
Dive Spot Log Averages At Butterfly Bay Keyhole
Average conditions based on logged dives & visits.
Conditions
Avg. Visibility5m
Activity
No dive activity logged yet.
