From the Valley Station ("Talstation") of the Drachenfels Railway, the Eselweg leads you past the Niebelung Hall and the Vorburg up to the Castle Portal. Taking it easy, you will need about 30 minutes.
By Drachenfels Railway
You can take the historical rack railway up to the Castle Portal ("Schlosstor", the midpoint station).
By Car
In Königswinter, you can leave your vehicle at the Lemmerzbad Carpark off the Oberweingartenweg and then walk the remaining distance – ten minutes well worth the while!