Yes - first page aks you what country your coming from
Can you change the language on the website?
AS mentioned before - Been to Holland / Belgium CP's 13 times. Never been to a UK one - can't afford them!! I spend very little when i go. Whit half term usually OK for BBQ. Buy one of those 3 legged BBQ's for about a tenner, take my own charcoal . Deep freeze my meat and put in cooler box before leaving. Still OK on arrival next day. Take own beer ( Stella back to Belgium) and buty duty free wine on the ferry. Take most other groceries . The only thing i spend money on is Milk , Salad , and chips round the pool. Take your own bottle of ketchup into the pool and burger bars because the Belgians charge extra for it and its expensive for what it is. Use the cooler box to take your own beer and snacks into the dome / pool area (bet you can't do that in the UK!) I can honestly say that one year we went to Erperheide and spent 70 euros all week! Don't get me wrong , I am not a miser, Just like to know what i am eating (tr ybuting steak for the BBQ in a Belgian supermarket - I got a bit confused and thought it was really expensive) basicaly if you've got the space in the car, fill it! as long as its not perishable.
Likewise, we've been to three Center Parcs in Germany (beware the one at Bostalsee, loads of steps to the accommodations!) and Zandvoort in Holland. Can't fault them, although we tended to go in October half term and it was a bit of a trek from the North East. (now kids older and we have a motorhome, so don't bother)
Tried Efteling theme park in Feb half term and great fun. Holland tends to stagger its holidays across 3 regions so never too busy. Cheap flights can still be had from Manchester to Eindhoven (under £50pp return inc carry on bag) and Holland is relatively small with good free motorways so quick and easy to get to destination. Bear in mind that cost of living is similar and often more expensive than UK so budget accordingly.