HAMPSTEAD, ENGLAND - AUGUST 17: People enjoy Parliament Hill Lido on August 17, 2016 in Hampstead, England. Brits have been enjoying several days of warm weather, though not the hottest of the year as previously predicted. After Britain's vote to leave the European Union there has been a rise in Britons taking 'staycations' as a result of the fall in the pound. (Photo by Dan Kitwood/Getty Images)