Am a bit late coming onto this thread, My name is Fizzy and I am a Center Parc aholic. We have been about 6 times in the last 3 years, Whinfell, Sherwood and did Elvden for the first time in Oct.
I love CPs, I enjoy the pool, cycling, walking, exploring etc. I have 4.5yr old and 18 month old. We rarely book activities just go with the flow. We did book horse riding for 4.5 yr old, cost £14. Have done "messy play for busy bees" where our then 2 yr old got to play with plastic animals in spaghetti, jelly, beans, paint, etc and I think that was 45 mins and about £5.
In reverse order -MrsThierryHenry - the brochure you get with all the different activities and times they are on is only sent to you after you have booked and between 2-4 weeks before you go!!! But to answer your questions, yes you pay for childcare if you wish to put them in a creche facility. The sessions are either 2 hours or 3 hours (they have specific slots) but you do get a discount if you also book the spa at the same time.
I have just recycled my planning guide grrrr so can't give you exact prices. But I do know that the spa for the 3 hour world of spa (14 different experiences including swimming pool filled with aromatherapy oils, jacuzzi, sensory showers -imagine "tropical rain" that starts as a rain fall would, the enclosure lights up orange and the smell of orange blossom surrounds you, or you can be a bit crazy and go for cold mist with a minty smell foot spas, and then steam rooms all with different heat/humidity and smells) this is £32 per person approx.
A 12 month old wouldn't be able to do many activities but there are loads of soft play areas in the restaurants, swimming pool has family changing and caters well for babies and toddlers, they even have their own pools.
The activities I think are reasonably priced, you can make it as cheap or exensive as you want, eating in instead of out, hire bikes or take your own - we always hire them as we get a bike with a trailer on the back to haul the kids round.
If you ring them they are really helpful and would give you prices and answer your questions. Accomodation is really improving.
EnglishTeeth - we always hire an exclusive (?) villa which means each bedroom has its own en-suite (we do it to get 2 toilets as DS1 can't hold it in for long) might be nicer for your 19 year olds.