Hikers on Slovakian mountain stumble upon clear ice, walk on water

In this viral clip, hiker Tomas Nunuk and his buddy  stumble across a frozen lake in Slovakia’s High Tatras Mountains. The patch was apparently so remote and clean that walking on the ice left a window-like effect. This is what real-life walking on water looks like.

For more visual context about the Slovakian region, here is one of those community theater videos where different parts of the world dance to Pharrell‘s “Happy.”

Screengrab via Tomas N/YouTube