The Olympic torch is lit in Greece by the power of the Sun. The first torch bearer, Spyros Gianniotis, a Liverpool-born Greek swimmer who won a gold medal at the 2011 World Championships, starts the seven-day leg of the relay in Greece. On 17 May, the flame will be handed over to London organisers and flown to the UK a day later for its tour prior to the the start of the Games on 27 July