Take the kids

The Thames becomes a giant playground for this annual festival.

On Saturday there's The Great River Race, pitting over 300 weird and wonderful craft against each other.

Sunday evening's finale is a carnival of 2,000 floats, musicians and dancers on Victoria Embankment followed by pyrotechnics.

More details at www.thamesfestival.org.

Sat 17 & Sun 18 Sept, from noon. Free.