Summer activities for 3 year old in SW London?

[TheBlonde]

Does anyone know of any classes/activities that will be running over the summer?
I'm looking for Balham/Clapham/Tooting area

Have you looked at local leisure centre ? Ours run play mornings during all the holidays where you drop them and run . They also do various other activities in the afternoon where you can leave them.

Thanks wheelybug - I'll have a look