Dancers bungee off the Millennium Bridge
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London 2012 dancers bungee off bridge

15 July 2012 Last updated at 09:42 BST

A group of performers are taking part in 'daredevil' acts at some of London's most famous landmarks today as part of the London 2012 Festival.

Events by the acrobatic dancers, choreographed by Brooklyn's Elizabeth Streb, include sky walking at London's City Hall and leaping into the fountains.

David Sillito was at the Millennium Bridge for the first of the day's Surprises:Streb events.

Full BBC London 2012 Festival coverage.