Next month sees the Royal Parks Foundation Half Marathon take place in the capital.
The annual event is 'enjoyed' by thousands of runners raising money for a whole host of charities and the route takes in some of London's most famous landmarks.
As well as passing by Buckingham Palace, the London Eye, the Houses of Parliament and the Royal Albert Hall, the 12,500 runners also have the chance to discover more of four of London's Royal Parks.
Hyde Park, St James's Park, Green Park and Kensington Gardens provide a green background to the capital and are perfect days out for those planning city breaks in central London hotels this autumn.
As well as the race itself, there are plenty of attractions and events for spectators to enjoy on October 7th. The Partridges Duke of York Square Food & Fitness Festival is set to create a unique atmosphere with a variety of activities on offer.
Sara Lom, chief executive of the Royal Parks Foundation, explained: "We're inviting local residents as well as runners' friends and families to come along to cheer on the half marathon runners, sample the delights of the Partridges Duke of York Square Food & Fitness Festival and get involved with the many family-friendly activities in the Fitness Festival."
There is also a special short race aimed at 11-16 year olds called Pulse3K taking place to encourage more youngsters to stay active.
The Royal Parks Half Marathon has raised more than £11 million for 365 charities, Cancer Research UK, Mind, Tommy's and UNICEF since its launch in 2008 and was named as Best Outdoor Event category in London at the Events Awards 2011.