Visitors staying in London hotels will often come to the capital to enjoy a major sporting event, with everything from grand slam tennis events and Test match cricket to major football matches going on during the course of the year.
However, there are also some major running events, with the difference being that ordinary people can share the same arena as the superstars.
It is a popular event and all the standard public places have already been taken up, but there are still charity places available for those who want to raise cash for good causes – with no less than 250 organisations to choose from who have race places. Entry costs £46 and those getting places in this fashion will be helping add to the £455 million raised for good causes since the race was first run in 2008.
The 13.1-mile route offers some of the very best of London and, as its title suggests, that includes the wide open spaces of the royal parks at a time of year when the autumnal colours will be emerging.
However, those keen to see the architecture of the capital can still see the London Eye, Buckingham Palace, the Houses of Parliament and the Royal Albert Hall.
As an alternative to running, people can spectate for free and encourage the runners, who will appreciate having the backing of the crowd as they drag their aching limbs towards the finish.
Indeed, those who come to watch can combine this with an exploration of the royal parks, an enjoyable thing to do on a crisp autumn day.
The royal parks are easily reached by Tube, with Hyde Park Corner and Green Park both being adjacent to the parks whose names they share.