Ice Caves in Reach After Polar Vortex Freezes Lake Superior
The polar vortex that has gripped the northern part of the country in record temperatures has also allowed National Park Service officials to escort visitors to ice caves off Lake Superior's shore ... magazine that ice is solid enough to support tourists ...
Frogs freeze themselves for Alaska winters
Each September, the wood frogs of Alaska do a very strange thing: They freeze. They do not freeze totally solid, but they do freeze mostly ... hibernacula — divots in the leaf litter near a lake or pond, where they planned to spend the winter.
Icicles dazzle in Lake Superior caves
APOSTLE ISLANDS, Wisconsin (AP) - Just as people dress differently when temperatures plunge below zero, so does nature ... caves formed over centuries along the Lake Superior shoreline by crashing waves, freezing and thawing have been transformed into ...
Hidden ice caves of Lake Superior revealed for the first time in five YEARS by big freeze
Freezing temperatures have created the perfect conditions to visit Wisconsin's Apostle Islands caves, accessed by walking a mile out onto a iced-over Lake Superior ... It's pretty solid generally and depending on the visibility it could be as white ...
Deep Freeze Reveals Lake Superior's Secluded Ice Caves
For the first time in five years, visitors to Lake Superior's Wisconsin shore can experience the ... During the summer, visitors can kayak through the caves, but a solid lake offers adventurers the only way to experience the caves on foot.