I?ve been to all but one of the CPs and for the cycling and pool area Longleat is my favourite. It?s got a lovely lake area, much bigger than Woburn. It is quite hilly there so little ones might struggle cycling if they are not confident cyclists. My 6 yr old really enjoyed it but he?s quite strong with loads of energy to burn! There is a land train that you can take if cycling gets too much. Unlike Woburn I think you do need a bike at Longleat as it is a vast area to cover on foot. If you got to try the spa at Woburn you?d be a bit disappointed at Longleat,for that Woburn is definitely better. Woburn also has a much better lazy river, the Longleat one is tiny and doesn?t have the rubber rings. The actual pool is bigger/ better though. Elveden might be a good option as it?s bigger than Woburn but much flatter than Longleat so easier to cycle. It was my least favourite CP but I can?t really remember why as was a few years ago! We?ve always done the midweek break and at Longleat took a day out to go the safari park which is right next door and well worth a visit. There is also a lot more wildlife at Longleat, we had deer walking past the lodge a few times as well as ducks at the back door. Hope that helps!