Mylna Cave is located at the foot of Raptawicka Turnia, 130 m above the bottom of the Kościeliska Valley, in its western slope.
The cave has long been known to highlanders, miners and treasure hunters. The total length of its corridors is approx. 1300 m, they are developed on one level, in some places they are very narrow, with puddles at the bottom. In winter there are ice formations emerging in it. As the name of the cave indicates – Mylna means "misleading" in Polish – it is easy to get lost in it, so you should not explore it alone.