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Early winter at the Mainland Caves
Looking at the ice caves from above is the only way to safely enjoy them as the ice begins to form.
Swallow Point on Sand Island
One of the archways eroded in the Devils Island sandstone on the east side of Sand Island.
Icicles will form in sea caves the same way stalactites form in other caves.
walls of ice encrust the lower cliffs where wave spray has frozen on the rock.
The frozen surface of Lake Superior stretches out for miles from the mainland sea caves.
Hiking over the ice
Once the ice on the lake is thick enough, thousands of visitors make the pilgrimage to catch a glimpse of these majestic caves.
The snow may be thick, and ice may be slippery, so you have to watch your step while visiting the ice caves.
A large joint crack runs perpendicular to the face of the cliff at the mainland sea caves creating a narrow opening between 60 foot high sandstone walls.
Water dripping from the roof of a sea cave creates long dagger-like icicles.
Icy columns form where waterfalls plunge from the clifftops.