Exit Freiburg-Mitte towards direction Titisee-Neustadt (B31), at Titisee turn on B 500 towards Waldshut/Schluchsee, Feldberg. At the Feldberg-Baerental intersection turn left towards Waldshut (B500). After the village of Altglashuetten in approx. 2 kilometers you find the Hotel Auerhahn on the left in Aha, along the lake.

via Autobahn A 81

exit Donaueschingen towards direction Titisee-Neustadt/Freiburg (B31), at Titisee via B 500 towards direction Waldshut/Schluchsee, at the Feldberg-Baerental intersection turn left towards Waldshut (B500). After the village of Altglashuetten in approx. 2 kilometers you find the Hotel Auerhahn on the left in Aha, along the lake.

coming from Switzerland

via border crossing Zurzach or Koblenz in Canton Aargau and then via B 500 towards Haeusern/Titisee-Neustadt. Drive past the town of Schluchsee towards direction Freiburg. You find the hotel 5 kilometers past the town of Schluchsee.
Coming from Winterthur and Schaffhausen via border crossing Schleitheim via Bonndorf nach Schluchsee Aha.