By car, take the A95 from Munich to Garmisch-Partenkirchen. The highway becomes the B2 main road just before Garmisch. Follow this road in the direction of Mittenwald. Shortly after passing through Garmisch, you'll see signs for the Skistadion. Turn right here on Wildenauer road. You can't miss the stadium and the parking area around it. By public transport, there are regular trains from Munich to Garmisch Partenkirchen. The Flixbus also covers this route.