The reserve "Wisla" in the town of Wisła was established in 1959. It aims at protecting brown trout in the Czarna and Biała Wiselka rivers that flow down from the western slopes of Mount Barania Góra. The reserve is located on Czerniańskie Lake. The upper part of the reserve is covered with submontane spruce-fir forest, while below there is a Carpathian beech forest. There are several attractive hiking trails running through the reserve.