Coming from Cologne (Köln): Take A555 to Bonn and A565 Bonn -- Beuel Nord, then take A59 towards Königswinter and continue on B42.
Coming from Ruhr Area / Leverkusen: Take A3, then A59 and continue on B42 to Königswinter.
Coming from Frankfurt: Follow A3 until exit Siebengebirge/Ittenbach, then follow street to Königswinter.
Coming from Koblenz: Take B42, following River Rhine until Königswinter, or take B9 / Bonn and the Rhine Ferry to Königswinter.
Parking area near the valley station.