this is UIAA. This route is 7, slightly overhang a bit stretchy but good positive holes, nice movements (even for old climbers), nothing unexpected.
Try to navigate here:
http://www.lezec.cz/pruvodcx.php?key=5
With google translator you can get a picture.
If you visiting CZ and have nothing to do....this is granit not the (traditional and mentally exhausting) sandstone of Northern and East Bohemia. Modern roads here.