Follow number 6 - Attention: A fear of heights is not a good prerequisite for this tour! On the almost 47 km long, moderately difficult route, you will not only work up a sweat by cycling, but also by climbing the two towers along the way. The Brend and Stöcklewald towers are considered to be particularly scenic towers in the Black Forest Highlands and offer far-reaching views as far as the Feldberg. The tour also leads past other natural spectacles, such as the source of the Danube.