With original plan to go on Lakatnik rock I arrive on Central Train station, but a little late. So check to where is next train – to Kustendil.
I get down of train on Polska Skakavitza and visit waterfall there. After that I cross Zemen gorge walking on railways to Zemen town. It’s 18 km. with 3-4 tunnels. Nothing complicated, but without train schedule is fun. Here is a short video about that. And map.