A cave system that remains unknown to scientists, but to the big cats that live in the Northern region, it provides shelter, and some amusement as reflections in the ice sheets covering the wall and floor are rather distorted. Similar, in fact, to a 'Hall of Mirrors' at the fair. Be prepared to slip around and onto your rear a few times, even if you have the steadiest of balance, most find they really have to dig their claws in to stay standing.