Blautopf

The great sight of Blaubeuren is the Blautopf, one of the largest karstic resurgences in Germany. This funnel-shaped depression, 21 m/69ft deep and filled with shimmering bluish-green water, is linked with a water-filled cave system which has been explored for a distance of some 1,300 m/1,400yd. On the edge of the Blautopf can be seen a historic old ironworks.