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CORNUCOPIA - They're stunning and will take your breath away, but first you need to get there.
The ices caves are more than a mile long walk along the shores of Lake Superior.
"You need to be bundled up in layers. You need to cover up your bear skin," said Neil Howk, Apostle Islands National Lake Shore. "You need to have really good boots. If you come after a snowfall you want to have snowshoes."
It all starts with billion year old rock.
"A cliff of beautiful reddish sandstone that's 60 feet high, and it's covered into arches and nooks and crannies," said Howk.
But it takes perfect conditions to fill in the cracks.
"There was a lot of wind in the month of December, so there was a lot of waves that splashed on the shoreline and froze," said Howk.
Having a snowy December only helped.
"Even though it's been really cold, there has been some melting, so you get a lot of water dripping off over the top edge forming the frozen waterfalls," he said.
With all of these conditions happening in the same winter there has never been a better time to check out this incredible scenery.
"The really cold weather we have been having, combined with all the precipitation we had are setting up for some of the most dramatic ice formations we have seen in the last 30 years," Said Howk.
This is the first time tourists have been able to safely visit the caves in five years.