Vojta Náprstek's route, or from Beroun to Karlštejn

We go to Beroun, from where we will walk to Karlštejn. It is possible to park in Karlštejn and take the train to Beroun, where the route starts right at the train station. It takes 9 minutes and 17 CZK from Karlštejn to Beroun. We will follow the red marker the entire route and the route measures 13,5 km. It depends if you go to the castle or not. We went from Beroun to the red one, where there is a slight climb at the beginning, which then alternates...