I probably shouldn't have put it on here, but I think it's becoming more well know. A UK centre parcs break in school holidays starts at £799 in Feb half term and goes up to £999 in summer holidays. European centre parcs and about half the price, some years there school holidays don't fall at the same time like last February and it's less than half the price.
You can do days trips to Efteling, Toverland, Walbi, Movie Park and Phantasialand plus more quite easilly.
You can see a crawl with all the cars with bikes strapped to the back driving up on the Saturday and Monday mornings.