I much more prefer seeing ice on these cave walls than on the roads I have been driving on. The ice formations on the caves of the south shore of Lake Superior are various colors including clear ice several inches thick.
And some of the cave tunnels reminded me of the Olympic luge track except I didn’t have a sled so in some of the tunnels, I just had to sit on my butt to slide out, but the caves were memorable to see.
Icy Tunnels