Forwarding anonymous report from #Mapy.cz user, please verify: There is no route like this. Deep forrest, we hardly make it with our bikes.

https://www.openstreetmap.org/directions?engine=graphhopper_bicycle&route=50.7684%2C18.8409%3B50.7628%2C18.8145#map=16/50.7658/18.8277