According to the official rules of the campsite, it is dedicated exclusively to organized groups (scouts, survival, eco-groups, etc.). They categorically do not accept individual tourists or motorhomes/campervans.

Therefore, the best tags to use here would be access=private (or access=members) and motorhome=no. Using just reservation=required would be misleading for individual travellers, as they cannot book a stay there anyway. changeset/183002110