See you there sour! SO wish we were going on 18th you lucky thing! I always complain when it's time to go home!
We also booked over a year ago - definately MUCH cheaper than if you leave it last-minute.
The thing about CP is you can do as little or as much as you like.
If you have your own bikes that saves a bit and if your DC are a bit older, they can spend hours in the (free) swimming pools.
I loved going when I was a kid and have such fond memories of family holidays there. I hope my DS will have the same!