Нас никто не ограничивал.

In winter there is a chance of snow in the area, as in the whole of Western Europe. However, only very rarely does this really impede traffic. You only drive slower. Further more, as winter tires are compulsory in Germany no doubt your rental car will be equipped. The castle can be reached via an asphalted road. No dangerous curbs or badly maintained paths. After all, it is a luxury hotel / restaurant :-) . Happy travels !

The castle sits high atop a cliff overlooking Oberwesel, so its over a mile (2-3 km) with the last half all narrow mountain switch-backs. I suggest contacting the castle staff via the email provided on website, as they provide a tractor/cart to haul luggage, but the porter is very busy at peak check-in. They were very helpful with our reservations, and would likely know options for taxi or shuttle service. If you are staying overnight, room 24 I believe is the highest round tower room overlooking the river valley on wing serviced by elevator. We were in 35 as I recall, with 4 flights of stairs...but unbelievable panoramic views from the balcony.