The nature trail meanders through the cultural landscape of Kärkkäälä village and near the banks of Korholankosket rapids from Hannulankoski to Keskisenkoski. Korholankosket rapids are part of the Rautalampi Water Way Route. The banks around the rapids are protected under the Shore Conservation Programme and the water bodies as part of the Natura 2000 network. The trail runs approx. 2 km, introducing the hikers to reedbeds around the rapids and flooded forests, as well as the history of Kärkkäälä village. Wet passages are covered with boardwalks. There are lean-to shelters at Keskisenkoski and Hannulankoski.
In wet conditions, the path along the rapids can be difficult to walk on, as the water may rise onto the path and make the boardwalk slippery.