High-rise boating lake

A couple enjoy a rooftop boat trip on a one-metre deep boating pond, which has been created above the Belvedere Road in London by the Austrian art collective Gelitin. The installation is part of the Psycho Buildings exhibition at The Hayward Gallery on the Southbank. As the highlight of The Hayward's 40th anniversary season, 10 artists have transformed the London gallery inside and out.