On yer bike!

St James's Gardens are given over to live music and entertainment - all with an eco-friendly theme.

There's a children's area, health village, arts and crafts and a film tent. The fair has joined forces with Camden Cycling Campaign, so you're encouraged to come on a bike, join a workshop or sign up for cycle training.

St James's Gardens Cardington Street, NW1 (020-7974 2192). Sun 4 Jul, noon-7pm, free. www.groundwork.org.uk