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Stunning, frozen pictures from Lake Superior's hidden caves
In the summer, Wisconsin’s Apostle Islands caves are a scenic spot where red rock meets the blue Lake Superior shoreline. During the winter, they transform into a magical ice palace.The National Park service calls them sea caves — and to get to the caves, visitors must walk about a mile over the frozen lake. The reward for the wintry journey: Fantasy-like caves full of beautiful, freezing icicles. This year's especially frigid winter has helped make the spot extra icy.The icicle-filled …
