There was a nice forest path which suddenly disapeared so I had to go back and run on the beach for couple of kilometers. Very nice, very bloody hard. There is again a path (road) through the forest from Kuznice all the way to Jastarnia. Very recommended route. Probably slightly better than the biking path on the south side of the penisula. The only unpleasant thing was that while running in the deap forest I cought a tick. I still have a mark on my leg. Hopefully it didn't transmit anything!