The highland scenery of the Upper Danube Nature Park is characterised by its rugged limestone cliffs dating back to the Jurassic period, mixed woodland and the vast Alb plateau.
The nature park covers an area of around 1,600 square kilometres along the transverse valley. The Danube Sink is a remarkable geological phenomenon located between Immendingen and Tuttlingen-Möhringen. Here, the waters of the Danube flow through the limestone underground, whilst the river bed itself remains partially dry for up to 200 days of the year. Boasting some wonderfully unique habitats, the nature park is home to a wide range of rare flora and fauna. The lynx is one species that has been living here for many years now. Visitors can be at one with nature and explore on hikes, bike rides, climbing adventures and canoe trips.