© Licensed to London News Pictures. 01/09/2013. London, UK. Clipper yachts turn around in front of Butlers Wharf on the River Thames for the departure of the Clipper 2013-14 Round the World Yacht Race. This is the first time London has hosted a round the world sailing race in more than 40 years.12 yachts ail begin the 40,000 mile, 11 leg race. They will visit six continents and the race will take 11 months to complete. 395 of the 670 crew members are from the UK, 87 come from London. Each vessel has an amateur crew under the command of a professional skipper. Photo credit : Vickie Flores/LNP