After months of preparation the wheels are finally in motion for thousands of cyclists taking part in the annual London to Brighton charity ride.
Nearly 29,000 are making the 54 mile journey this year, with proceeds going to the British Heart Foundation campaign against coronary heart disease.
The weather was gloomy, but spirits at the starting line couldn't be dampened. The riders set off from Clapham Common at staggered times from 6am.
Eight year old Lauren Richardson, accompanied by her dad Kevin, today begins her attempt to kayak 225 miles down the River Thames for charity. The thirteenday event will see them negotiate 45 locks and travel up to 27 miles a day fromthe source of the Thames to the sea.
The pair are aiming to raise money for Widehorizons Outdoor Education Trust which aims to give children adventures as part of their education. They will be camping each night and blogging on their progress.
A man from Ealing is taking his charity work to the next level, by cycling from Paris to London on a Boris Bike.
Michael Jardine will be joined by a team of injured service personnel on the mammoth journey next month.
Click here for more on the challenge.
Slough MP Fiona Mactaggart has donated £14,268 to Comic Relief after thousands of people retweeted her post on social networking site Twitter.
The Labour politician told her followers on Friday that she would donate £1.00 to the Red Nose Day appeal for every retweet the post received by 9pm.
"You have to stick by your word if you take a risk like that," she told ITV London.
A politician's "spur of the moment" charity idea left her more than £14,000 down after promising £1 for every retweet she got on Twitter.Read the full story ›
This is the moment Claire Lomas crossed the finish line just moments ago, after a 16-day marathon.
Claire, who is paralysed from the chest down, has become the first person to complete a marathon on 'bionic legs'.
Claire Lomas has completed the London Marathon after 16 days on the road. She had plenty of support along the way, including from famous names like Gabby Logan and Ben Fogle. She's become the first person to complete any marathon using a pair of 'bionic legs.'
Claire Lomas has raised more than £85,000 for charity during her incredible marathon challenge. The money will go to Spinal Research - see her JustGiving page here.
The family of Claire Squires, who died during the London Marathon on Sunday, has urged people to keep donating to her internet sponsorship page. Since the 30 year-old collapsed near the end of the marathon, hundreds of thousands of pounds have been donated to her chosen charity, the Samaritans.
Thousands of people have been donating to Claire Squires Just Giving page.
The thirty year old collapsed and died during yesterday's London Marathon.