From the south- and west-direction you should drive from the Salzburg motorway junction in the direction of Munich/Innsbruck. The hotel is located directly beside an underpass by the exit to the German/Austrian border in Walserberg (look for a sign “Raststätte Servus Europa Nord am Walserberg”).
On the right-side beside the service station, you will see a barrier with a set of lights. This opens automatically after around 1 minute and is then accessible.
If you are using a GPS system, you should enter in “Raststation Walserberg Süd” as your destination.
If you are driving from Munich on the A8 in the direction of Salzburg, the hotel is located directly on the border (on the entrance to Austria).