A group of children run into a fountain on the South Bank on August 1, 2011 in London, England. Temperatures in the capital reached around 27 degress today and are expected to hit 30 degrees by Wednesday. (Photo by Dan Kitwood/Getty Images)

Young boys lean over a giant sofa on the South Bank on August 1, 2011 in London, England. (Photo by Dan Kitwood/Getty Images)

People enjoy the sunshine in a garden on the Embankment on August 1, 2011 in London, England. (Photo by Dan Kitwood/Getty Images)

A young girl peers into an installation on the South Bank on August 1, 2011 in London, England. (Photo by Dan Kitwood/Getty Images)

Children play in the fountain on the south bank on August 1, 2011 in London, England. (Photo by Dan Kitwood/Getty Images)

A woman reads a newspaper in the sunshine in Victoria Gardens on August 1, 2011 in London, England. (Photo by Dan Kitwood/Getty Images)

A young child sits in the fountain on the south bank on August 1, 2011 in London, England. (Photo by Dan Kitwood/Getty Images)