Since we were so close to the border we decided to spend a night in Belgium. It may seem trivial to cross only a few km beyond the border, but immediately one can tell you are in another country.
Most notably, the language in Belguim is much more French sounding. The countryside in these parts had much more expensive housing and nice cars instead of bicycles.
The campsite was wonderful again, lush green vegetation, trails nearby, a restaurant, and it was nearly deserted