This is called The Grotto at Tobermory.
Inside.
Georgian Bay also has the Thousand Islands National Park. The scenery in Georgian Bay is spectacular. The water is so clear you can see the lake bed, and the fish on it, at 30 feet deep or more. The islands are solid Granite wiped clean by glaciers from the last ice age. Its part of The Canadian Shield. The Limestone around the Bruce Peninsula is part of The Niagara Escarpment that runs to Lake Ontario to the south. Sort of like a giant Esker, but of Limestone instead of gravel.
Inside.
Georgian Bay also has the Thousand Islands National Park. The scenery in Georgian Bay is spectacular. The water is so clear you can see the lake bed, and the fish on it, at 30 feet deep or more. The islands are solid Granite wiped clean by glaciers from the last ice age. Its part of The Canadian Shield. The Limestone around the Bruce Peninsula is part of The Niagara Escarpment that runs to Lake Ontario to the south. Sort of like a giant Esker, but of Limestone instead of gravel.