For the first time ever, Sport Relief has taken inspiration from triathlon and is giving thousands of people the chance to sign up for either a swim, cycle, or run challenge in 2014.
The events will take place in more than a thousand locations across the UK, and include landmark events at London's Queen Elizabeth Olympic Park on the weekend of 21-23 March.
TV presenter Denise Van Outen said: "I love Sport Relief and even took part in a mile event when I was pregnant! This year I'm going to do something more challenging and swim 5km."
There will be plenty of options for all ages and abilities, including:
- Sport Relief Swimming, which include individual and team distances of 1.5km/2.5km/5km
- Sport Relief Cycle, taking place in Glasgow, Manchester and London's Lee Valley VeloPark
- Sport Relief Mile, where people can walk, jog or run distances ranging from 1-3 miles
Money raised through the event will go towards helping some of the poorest and most disadvantaged people in the UK and around the world.
Over £50mn was raised at the last Sport Relief in 2012, which included comedian David Walliams swimming 230km of the Thames, and fellow comedian John Bishop's 'Week of Hell', in which he rowed, ran and cycled from Paris to London in just five days.
For more info on how to take part head to www.sportrelief.com.
(Image: Sport Relief)
Will you be taking part in next year's Sport Relief? Are you going to persuade a friend or family member to do triathlon for the first time? Let us know in the comments below!