Again in Bavaria, I followed the current Altmühl river, which used to be a valley built by the ancient Danube river when it still took another course before and during the last ice ages.
Altmühl river and old Danube valley, Eichstätt, Bavaria, Germany
Altmühl bike trail, Bavaria, Germany
Arndthöhle cave, Kipfenberg, Bavaria, Germany
Via Raetica bike trail, Altmühltal Nature Park, Bavaria, Germany