On location, please check again
1) Are these buildings really buldings on their own or are they part of one big building?
2) IIRC, somewhere here are toilets but not yet mapped
3) Is positioning of the castle and surrounding buildings really OK? My GPS track and BDOrtho IGN are both 5m northeast.
4) Castle walls are not yet mapped

really no barrier on this side?

IIRC there was a souvenier shop and a cafe. Both are not yet mapped.

IIRC there was a small building with some sales point (sweets?). Both are not yet mapped.

Unable to answer "Is this still here?" – 5807-075 (Emergency Access Point) – node/4924125858 via StreetComplete 61.1:

6/2025 kein Schild entdeckt, evtl von Vegetation verdeckt? Nochmal im Winterhalbjahr prüfen.

are the buildings connected?

a path exists directly at the climbing routes, around here. where exactly is it going?

Wo beginnt + endet die Böschung, die sich nach Norden zieht, vielleicht 15m hoch ist und ziemlich steil ist?