Nordwestlich von Weimar mit Ettersberg

From Tröbsdorf to Hopfgarten, then towards Utzberg, passing an old windmill, then to Ottstedt a.B. (path can only be used this way if the Hopfgarten reservoir has very little water, otherwise a small detour via Hopfgarten), then up to Ettersberg, past the camp, along the old railway line towards Schöndorf, from there to Weimar and then back to Tröbsdorf (GPS indicates 414 meters of elevation gain)