There is the old pub quzi question - name three famous Belgians. Regretably I have to say that Belgium does have some things to offer but not a lot. I too would recommend Camping Blaarmeersen although take care with security as they have the occasional thefts (we got turned over four years ago when camping - and we were asleep in the tent at the time! Regular bus service outside gate into Ghent which, IMO, is far nicer to visit than than Burgge or, for that matter, Brussels. The problem with Brussels is that once you have visited the Grand Place and its surrounding streets and the Atomium (expensive) there is not much else to do. The European Commission (Barleymont) is just another office block.
The Ardennes in southern Belgium is far more interesting, as are the battlefields of WW1 and the Menin Gate at Ypres, and Waterloo (climb the Bute de Lion - the view alone is worth it.) The NE eastern coast at places like Knocke is like a mini Mayfair - talk about money?
Dutchland is well worth a visit and although there are many sites you will find few with UK vans. Most sites speak some English but rarely put up signs or have literature in the language. We stayed on a site in woodland east Utrecht - its in the CC book. Good facilites and five minutes drive from a rail station with direct lines to Utrecht, Rotterdam, and Amsterdam.
Amsterdam is worth a visit, but only one. It has declined sharply since we went there on honeymoon 30+ years ago. Rotterdam is even busier than Amsterdam, and The Hauge is just a city of glass - not unlike Canary Wharf. Dordenct (I hope that is correct,) Alkmaar, and the World Heritage windmill site at Kinderjk (or something like that) are well worth visiting, as the Gelderland, the hilly area in the east of the country.
The only downside is that, relative to France and Belgium, Holland is quite expensive although you do buy quality.
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