Lovely quiet spot apart from 4am bells ringing for Mass at the Abbey which was rather lovely. 1 km from auto-route to/from Calais. Definitely ‘flat enough’ and only very slow 3G. As in the photo, there is a sign saying parking only for abbey visitors. It is possible to visit, and I think buy from their tea room. We arrived after dark, and left before dawn to catch our ferry. This felt OK to us.