Kate meets Scout flame volunteer
The Duchess of Cambridge is due to meet a fellow Scout volunteer who will carry the Olympic flame to the gates of Buckingham Palace.
Torch bearer Jon Sayer, 33, was chosen to take part in the relay after Kate asked for a Scout to participate in this prestigious leg of the event.
He has been described as an inspirational helper who last year saved the life of a man who had jumped into a river swollen with rainwater.
Mr Sayer, from Todmorden in West Yorkshire, is one of three volunteers helping to carry the Olympic flame through the grounds of the Queen's official London home on Thursday evening.
The Duke of Cambridge nominated his charity Mountain Rescue to take part and John Hulse was given the honour, and Wai-Ming Lee from MapAction was picked after Prince Harry, the organisation's royal patron, put it forward.
All three royals will be on hand to watch the flame's journey on the eve of the Olympics, which is opened by the Queen on Friday.
They are Ambassadors for Team GB and ParalympicsGB and will be joined by 40 athletes from the Team GB Ambition Programme - which aims to encourage future sports stars.
Mr Sayer was chosen for his tireless volunteering in his community, having worked for 16 years with a cub scout pack and an explorer scout unit, as well as training new volunteers.
He is also a trained lifeguard and and gives up further spare time to patrol the streets as a Special Police Constable.