Calvary near Valdštejn

Calvary or Three Crosses near Valdštejn can be found on the edge of the rocks about 250 meters as the crow flies from Valdštejn Castle. From the crosses there is a beautiful view of the castle and the valley between Sedmihorki and Turnov. The Hamštejnský ridge rises directly opposite us and, of course, the dominant feature of this region, Kozákov.
How to get to Calvary? That's a tiny nut. The touristic way there is unfortunately (or God?)…