A race to get your teeth into

No less than 24 of these 40-footers will be taking to the water in aid of the NSPCC.

Each boat carries up to 16 paddlers, drummer and helmsman. The 250m course runs from the London Regatta centre, and there's live music and giant Jenga, Scalextric and Connect 4.

London Regatta Centre Dockside Road, E16 (020-7596 3731). Sun 28 Sep, 11am-4.30pm, free.