With an area of 26,000 hectares, it is the third largest nature park in South Tyrol. Craggy peaks and rock faces that seem almost insurmountable protect a vast area of Alpine pastures and high plateaus that differ greatly in their morphology and landscape. The nature park is also home to some of South Tyrol's most famous natural lakes, including the world-famous Pragser Wildsee lake with its unique reflection of the Seekofel mountain and the Toblacher See lake, which is an important habitat for many water birds.
Among the many imposing peaks in the nature park, the Lavarela, Conturinesspitze, Neuner, Zehner, Seekofel and Hohe Gaisl mountains stand out. The three plateaus of Fanes, Sennes and Fosses are characterised by karst like no other area in the Dolomites. Here, in addition to funnel-shaped swallow holes through which streams disappear underground, there is also the famous parliament of the marmots, an arena-like rock formation.