You should definitely take the small trail at the beginning of the lower Aubachse to be able to drive along the shore. Pure nature. Above just a normal path.
The Aubach is a twenty-two kilometer long river in the Bavarian Spessart. It rises in Wiesen in the district of Aschaffenburg and flows into the Lohr from the right and west near Partenstein in the district of Main-Spessart.