Toddler/baby friendly holidays for next summer

[verybusyspider]

My parents have bought an awesome trailer tent which they have said we can use for our holidays ds's will be 4, 2.5 and 1 next summer - any ideas for great campsites?
Ideally we'd like something with a swimming pool, near beach but would also like ideas of places that just have great children facilities and in good location for 'days out'

Can recommend clippesby where we took our 3 & 5 yr old to this year.

Thanks Heated!
anyone else???

We went to Haven in Wemouth (seaview site) last year and we are going back this year. There is loads to do. Swimming pool indoors and out, small soft play on site (all free), kids clubs, evening entertainment, nice beach, town, sealife centers and other days out locally, and you can use the site next door (5 min walk) for free too which has the same features but it is nice to go to a different soft play etc for a change as they are not huge.

We are going off peak in september and paying £88 for 14nights for all 4 of us!