I visited Drachenfels in October 2013 with my husband and some friends - it was a rainy day but we still enjoyed the visit, the views and in a way the rain was an advantage because it kept the crowds to a minimum. However, there were still some other hardy explorers who visited the site so we were far from alone.
You can reach the castle ruins either by walking up the hill or by taking the little electric train for a small fee. We chose to take the train, in part because of the weather but also because my knee is not in good enough shape for the climb from the bottom. Once we reached the top of the train tracks, there was still some climbing to get to the actual ruins - the pathway was fairly steep but not very long so it wasn't too difficult to get there.
The ruins are impressive, whether viewed from afar, from the level of the train platform or with an up-close examination. The views of the Rhine River below and the City of Bonn in the distance were awesome - it was fun watching the boats traveling up and down the river.
There is a restaurant and a take-out snack bar if you want to get something to eat at the top, with indoor and outdoor seating and lots of places to take great photographs. Even with the drizzling weather, we had great views and I can imagine that on a sunny day, you could see for many miles. I thought it was well worth the time for the visit and recommend it for families, couples and/or friends, although young children might find the ruins less interesting than older children.
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