The Grotto
A limestone sea cave on the shore of Georgian Bay, with brilliant, crystal-clear blue water inside. It is the most popular attraction in Bruce Peninsula National Park.
The Grotto is a sea cave carved by the lake into the Niagara Escarpment. You can climb down through a rock crevice from the cliff top to enter it. Sunlight comes in through an underwater passage, turning the water a gem-like blue. From the Cyprus Lake visitor parking lot, it is about a 30-minute walk, passing white pebble shores and cliffs. In peak season, you must book a parking time slot of about 4 hours in advance on the Parks Canada website. There is no parking on site, and visitors without a reservation will be turned away. Cliff edges are slippery and unguarded, so take care when climbing into the cave. Lake water stays cold even in summer, so only jump in if you feel comfortable.
Opening hours
All day (in peak season, parking by reserved time slot)
Nearby sights
- Indian Head Cove
- Cyprus Lake
- Halfway Log Dump
- Singing Sands
- Flowerpot Island
- Fathom Five National Marine Park
- Bruce Peninsula National Park & Fathom Five Visitor Centre
- Little Tub Harbour, Tobermory