Two groups of marines set off from Downing Street this morning, on an epic fund raising speed march around the capital.
One team headed east to the Olympic Park, and the other set off west, past Buckingham Palace.
They were seen off by Prime Minister David Cameron and the Military Wives choir.
Royal Marines speed marched through London today in an attempt to set a new world record on Remembrance weekend.
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Prime Minister David Cameron will kick start the remembrance weekend when he addresses a group of Royal Marines outside 10 Downing Street.
The Marines are attempting to break a world record for the fastest speed march.
A team will head west and attempt to run a 26.5 mile course in under 4 hours 19 minutes, whilst wearing 40lbs of kit.
The route will take in some of London's most iconic landmarks including the Houses of Parliament, Piccadilly Circus, Marble Arch and Buckingham Palace.
A second team will head east to the Olympic Park- the first people to gain entry since the London 2012 Olympics.
The Marines are hoping to raise £50,000 for the Royal Marines Association:
"It's an honour to be invited by the Prime Minister to start both speed marches from
Downing Street. Its great for us to know that we have the support of Number 10 and I'm
sure it'll be special day for all involved.
The boys have trained really hard and we are totally prepared - we cant wait now, so we hope people get behind us and raise some funds."
- Barry Colarusso, Speed March Coordinator
An injured Royal Marine will be among 20 people abseiling from the roof of St Pancras station later.
They will be performing the dare devil stunt, without the support of a wall, from the centre of the vaulted roof.
They will be accompanied by a rousing performance from the Corps of Drums from the Royal Marines Band Service.
The event is in aid of the Royal Marines Charitable Trust Fund.
