Most of my hike was up and over the top of the sandstone that rises to the south of Turnov. ALong the edges of this very broad ridge are the "rock cities" that make the Cesky Raj famous. At Hruba Scala, you get from the top of the ridge to the bottom of the city by walking down through the "mouse hole." As far as I can tell, anything in the country that is a narrow passage winds up being called a mouse hole. This view is actually looking back up the mouse hole, from the bottom. It has stairs built into it now, but even before the stairs, it was obviously ann easier passage than the sheer, 200-ft walls of the cliff.