Locals go there to learn about the history of the fortress, to learn about the archbishops in Salzburg and around the christmas time to visit the christmas market there. In the summer time some locals go up there to eat there, drink a coffee or just for the views.
It is one of the most picturesque spots in Salzburg. you have a great view over the whole city and the mountains surrounding Salzburg. You can also see the three nice rooms inside where in the evening concerts are held.
Special location in the evening time.