Note the rules!
Access
By car next to the takeoff, cable car, or bus (station "Königstuhl")
Rules
Verbose 4h+ briefing mandatory due to the site's delicate location and the hard LZs south of the Neckar. If you stay in Heidelberg just for a couple days, chances are you won't get to fly here.
This restriction was necessary to allow flying above one of the world's most famous castles in the first place, so please respect it and visit the club's website to arrange for a briefing.
See http://kurpfaelzer-gleitschirmflieger.de/index.php/flugbetrieb/148-regulations-and-requirements for the offilicial site rules.