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Backpacker Magazine – Online Exclusive
Visitors can walk across the frozen Lake Superior to reach them.
"You’re looking at these beautiful rock formations, but they’re covered by stalactites and stalagmites made of ice,” [Apostle Islands National Lakeshore superintendent Bob Krumanaker] said.Planning to go? Here's the crucial info. Be quick, though; park officials say that these optimal conditions might only last a couple more weeks.
“And then if you carefully crawl under some of that ... the ice is completely smooth and generally completely clear underneath it. So. it’s like there’s a glass floor that you can see the bottom of the lake," he said.