another suggestion is the middle Erzgebirge. You should include Fichtelberg mountain as well. A good way is over Johanngeorgenstadt and Breitenbrunn. From there you can extend your trip ...
if it's Auerbach near Plauen it's a good choice for tours. The Vogtland is a good area for that. Try B283 between Klingenthal and Eibenstock as part of a tour (either direction) and have a stop ...
Kalender
