Lake Feldsee is a protected natural paradise, not a lake for swimming. Its basin was formed in the last ice age by glaciers. The cool and oxygen-rich water is fed by mountain streams from the spring-rich Seebuck mountain. The seabed is partially covered with aquatic plants like quillwort, which is under conservation. A protected forest (German “Bannwald“), a self-contained natural biotope, borders on the Feldsee.
The lake can only be reached on foot, by mountain bike, or in winter on cross-country skis. If you go there, plan a stop at the Raimartihof inn, and enjoy simple Baden cuisine.