Toddler Day's Out in Wiltshire/Hampshire border?

[babyfettle]

Having a mental block on places that are entertaining for 2 toddlers (2 and 3 yrs) and a 1 year old (not all mine, going with another mother too!) in and around East Wiltshire/West Hampshire? Ideally must at least have access to a good cup of coffee and cake for us mothers!
Just thought I'd see if anyone had any ideas or suggestions.
Thank you!

Paulton's park? Just off M27 near Southampton though not sure which junction.

\link{http://www.paultonspark.co.uk/2006/info/location.html\here}

Wow looks great - so much to do, not sure a day would be enough! Def worth a visit over the summer.

Thanks!