Cold-water remote-site planning is required. Call 911 or use marine VHF for emergencies; Tobermory is the nearest service base, and groups should carry oxygen and reliable communications.
About
About this site
Georgian Bay shoreline site near the Grotto, with submerged passages leading to open water and a shallow grotto entrance.
Typical depth
23 m
Best season
Late spring through fall; access and visibility depend on Lake Huron weather.
Access and parking
Parks Canada describes diving access via boat from Tobermory; avoid entering overhead environments beyond training.
Local regulations
Divers must register and purchase a Parks Canada dive permit before diving; display a dive flag, use moorings where provided, observe harbour dive-area restrictions, and do not remove, damage, or disturb natural, cultural, or scientific features.
Location
Where it is
Media
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Site information is contributed by the community. Always verify conditions locally before diving. Diving can be hazardous — dive within your training and experience.