Hi Voidka
We went to CP De Vossemeren for 5 days this year at Easter (Mon to Fri), we paid 430 Euros for a VIP lakeside villa (2 bedroom and had a sauna as well), also included 2 adult bike hire (took kids bikes with us) and I think the AquaMundi (big indoor pool) pass for all of us. Went with some friends who have been to all the European parks and been back to this one 3 times now with his 5 kids.
As a CP virgin and a DH who refuses to pay the "Rip off CP prices in the UK" (his words not mine) we had a brilliant time and are even thinking of going back again next year (never thought I buy into the CP concept)!
Our DS's were 3 and 5 and had a fab time. The kids activities were really good, although to take part in some activities they had to be 4, but our DS who was 5 did "Wanna be a Pirate" and "Wanna be a Chef". Both cost 4 Euros and were for 3 hours, he had a ball. They did have a few activities for our 3 yr old in the kids club, we did painting (adult had to stay with them) and they could play with the toys, dress up stuff etc. This one was free.
They also had a big Pirate ship inside a dome (name escapes me) with cafe, little river and sandy area kids could play, our boys spent ages in there. Also had rope course and climbing stuff for older kids/adults.
The staff were very helpful and spoke English. I would say the restaurants were overpriced (you are a captive audience), we went to one of the family ones and the kids meals were adult size and wasn't cheap, was ok though. The onsite supermarket is not massive and a bit pricey.
We went went on the tunnel and it was a nice easy drive to get there. Stopped at the Carrefour to stock up just before we got there. We did get bread each day and a newspaper - OMG was The Sun (quality reading).
Did go to the local town and went to the markets (was on a Wed and in the afternoon) and also had a fab meal at a braissere in the square.
We really enjoyed ourselves and most importantly so did the kids, which to us means happy kids = happy parents. Let me know if you want any more info. Sorry this has turned into an epic novel 
Hi Portofino
Thanks for the heads up for Lindal, will take a look at it as well. Be interesting to do a comparison.