Lost in the middle of a forest? Need to take a shower? Cue the convenient nearby waterfall. Excellent source of Fanservice. Often leads to Outdoor Bath Peeping... and there's good chance it's cold as hell.
In Real Life it's somewhat less practical, particularly for large waterfalls, since in most cases the water would be stone cold and would have enough force to knock you flat if you were to step [...] [tvtropes.org]