Soos Nature Reserve is a vast peat bogs area located about 10 km northeast of Františkovy Lázně. This reserve has lakes, mineral springs that are famous since Ancient Rome times, gaseous carbon dioxide springs and mud volcanoes that can remind of the prehistoric era. The wooden walkway trail is laid above the bogs and dry lakes so you can see various geological phenomena.
The park is also inhibited by protected animals that you can observe in a wild. There is a museum of natural history with geological and paleontological exhibitions, life-size dinosaurs exhibition, the "Avian World of the Cheb District" exposition, and much more.
You can visit the park daily from mid-March to mid-November.