Roz, you would have to sell me the idea of a One O'Clock Club!

The ones I've seen seem rather exclusive (eg Peckham Rye Common where it's surrounded by gates that are locked when not in use - which is a real shame for the kids who are playing by the cafe in full sight of sad lonely playground equipment.... ) and I'm not sure there is room in the Horniman Triangle for a separate area, if that's what you mean.

However, the lack of toilets is becoming quite an issue for me, (well my son actually..).

Not sure what sort of supervisory costs are involved with swings - and certainly the loos in some public parks don't appear to have had a member of staff anywhere near them!