We recently had a chance to visit the Great Wall of China during a recent visit to Beijing. It is a once in a lifetime experience and well worth visiting.
The ride to the wall is beautiful, high in the mountains, with views of the high wall off into the distance. We took the most touristy route. We ascended the wall on a cable car, then walked two towers in each direction - beyond that, the wall is not accessible at this location.
Walking at times is very steep over difficult terrain.
There is a small town at the entrance to the Wall with many shops and restaurants.
Many tourists, but worth it.