Suggestions for activities with a 4.5 y/o

[calymene]

Hi,

Due to an unfortunate series of events my 4.5 y/o son lives in the states. I'll have him for about 3 weeks in late September/early October. Planning interesting stuff to do with him is easy (this bit of the world is packed with it...) but the hard bit is finding things for him to do where he can connect up with kids his own age. Does anyone have an any good ideas for Wandsworth or SW London things to do where he'll be able to do this? Shooting for groups in the 4-5 y/o range, and preferably week days.

Any suggestions gratefully received!

One o clock clubs are worth a look
Little Kickers might let you do half a term

Most other 4.5 year olds will be in school already

Thank you! One o clock clubs look interesting... School starts a year later in the states unfortunately so it's a bit of a problem...