You are entering the exit of the airport. Follow the signs for the highway A4, direction Vienna. Stay on the A4 for the next 13.8km. At junction Knoten Prater change from A4 to the A23, direction Graz. Leave A23 at junction Altmannsdorfer Strasse, direction Wiental and continue for 3.0km. The A23 leads you to Altmannsdorfer Strasse, follow the hill up and down, on the lowest point you will find yourself at the intersection with Schoenbrunner Schlossstrasse. Turn right into Schoenbrunner Schlossstrasse. You will find the Courtyard by Marriott Vienna Schoenbrunn on the left hand side, please look out for the big sign.