car:
Coming on the Autobahn A620 Saarbrücken-Merzig, take the Saarlouis exit and follow Metzer Straße, direction Felsberg, Metz. Continue on this same road until you will have reached Oberfelsberg. As soon as you enter the town of Oberfelsberg, turn onto the dirt road on the right hand side, it will take you directly to the Teufelsburg. The castle is also signposted.
train:
Coming by train, get off at the Saarlouis station and continue by bus