Once the Olympic Flame is handed over in Athens, it will be transferred to Lands End where three-time Olympic sailing champion Ben Ainslie will be the first torchbearer in the final 70-day relay to the start of the Games.
London 2012 chairman Lord Coe - who carried the torch in 2004 and also for the 2010 Vancouver Winter Olympics - has described it as one of the "big moments" towards the Games.
He said: "I have seen hundreds and hundreds of citations of the people who are running. We have got from 12 to 100 (year-olds) with fantastic stories."
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Charlie Gard's parents are embroiled in a fresh High Court battle over whether the terminally ill baby can spend his final days at home.
The rogue surgeon was previously convicted of deliberately wounding his patients and carrying out needless operations.
A fine and warm day, but turning wet and windy tomorrow