Celebrities including Cara Delevingne, Sienna Miller, Rita Ora and Dame Vivienne Westwood have teamed up with marine conservation charity Project 0 to take part in its La Mer Wave Walk initiative, in collaboration with luxury beauty brand La Mer.

The stars have each helped create 50 wave installations to be placed in different locations across New York as part of a public art trail, and members of the public will be offered the chance to bid on each item to raise money for the charity.