Nature trail Olszynki. Take the 132 road to Kamień Mały and turn left behind a fueling station into the paved road. Then pass the railroad crossing and take the straight, bumpy but passable road, to slowly reach the car park with a lookout tower 2 km away. From there, keep walking back through ca. 900 m in the direction of Kamień Mały, to a wooden bridge on a roadside canal. Here starts a footbridge of the path that leads into the forest swamp. Three overpasses, with the total length of ca. 1.5 km, and the so-called “Cottage on the water” will allow you to observe the marsh habitat of great beauty that one cannot reach in other circumstances without getting absolutely wet. The path is a loop with a length of 3 km, so you will reach the car park again by returning another way. Along the way, you will see educational boards placed there to help discover the specifics of the surrounding habitats and natural phenomena. The walk will take 1.5–2 hours.