By car
you reach Oberstaufen mostly via the B308. From the center of the village, the station square, turn north-west into Rainwaldstraße. After only 150 meters this becomes Hugo-von-Königsegg-Straße, continue straight ahead for 350 meters, then turn 90 degrees left into Montfortweg, after 35 meters right into Kapfweg, which you follow for 80 meters in a right-hand bend, then turn left into Am Kühlen Grund. You can park your car on the right hand side of the entrance to the building on the outside parking lot number 4.

Alternatively, enter these coordinates in google maps 47.553859, 10.016512, choose your starting point and have the route displayed.
 

By plane
Both nearest airports, the Allgäu Airport in Memmingen and the Bodensee Airport in Friedrichshafen are 1 hour's drive away.

Bus and train
Of course you can also reach Oberstaufen by bus or train.