Dub214,
About 10mins walks from that estate is a area called the Bawn Og. It has a kids playground which is only 20months old and is well maintianed. Also here is a running track.
As for schools their is 4 schools in the town. One secondary, 2 primary and an primary Irish school which only recently moved into a new facility up at the Bawn Og.
I have lived in Kilcock for three years and their is plently of activities for kids. these include running, basketball, football, camoige and others so they wont be short of anything to do assuming they are not that young.