Did the hike up to the Dürnstein Castle ruins. The hike is a tough one. It's 30 minutes STRAIGHT up the hill. It is a difficult climb, truly NOT for anyone who is afraid of heights or unable to do a tough climb. This is very SERIOUS ... we had several people try it and it didn't end well. In the picture, it's the ruins at the very top ... looks so small in the picture! But up top, the view is beautiful!