Wildsee, Bog pond in Gernsbach and Bad Wildbad, Germany.

Wildsee is a bog pond situated between Gernsbach and Bad Wildbad at roughly 900 meters elevation. A wooden boardwalk crosses over the water, allowing visitors to walk directly through the moorland landscape without disturbing the surrounding habitat.

The bog formed roughly 10,000 years ago due to geological conditions and high rainfall in the region. Over millennia, this wet environment developed into the specialized habitat visible today.

The name Wildsee refers to the lake itself, while the surrounding raised bog is the Wildseemoor. A boardwalk built by the Black Forest Club (Schwarzwaldverein) crosses the bog and passes directly over the lake; the waymarks of the Mittelweg long-distance trail from Pforzheim to Waldshut now lead around the nature reserve rather than through it.

The site is accessible via marked hiking trails from several starting points in the region. Information boards along the routes help visitors understand the moorland and its features.

The Wildsee is the largest raised-bog bog pond (Hochmoorkolk) in Germany, and its open water covers about 1.15 hectares, while older surveys including floating mats give 2.3 hectares. The adjacent Hornsee, at 0.43 hectares, lies entirely in Gernsbach, while the municipal boundary between Gernsbach and Bad Wildbad runs through the Wildsee itself.