Let us know what you, your friends and family are up to this year for Sport Relief?
All the details to send in your comments are at the bottom of this page, so keep scrolling.
Whether it's big or small, running a mile or crawling a metre, we want to know what challenges you, your friends and family are doing to support Sport Relief.
Greg James successfully completed the gruelling Gregathlon! The Radio One DJ completed five triathlons in five days across five British cities.
He ran, swam and cycled an incredible total distance of 246.3 miles to raise awareness and cash for Sport Relief.
My football academy have held a 'onesie week' all week where the football players and coaches have trained in their onesies and donated to sports relief.
Dylan, Midland Futsal Academy
Year 2 have celebrated Sport Relief by taking part in a variety of disability sports, which include Boccia, Goalball, Seated Volleyball and New Age Curling. The teachers have challenged one another to a tournament of Hungry Hippos, and a house netball contest was held at lunchtime and Year 6 have been enjoying TAG rugby this afternoon.
Rhydypenau Primary School, Cardiff
Our whole school ran around the community's 400 metre football pitch as many times as each class could in 15 minutes. Three of our class, Alfie, Isabella and Jay, ran nearly 3 miles each!
Libbie, Isabella, Lewis, Ixworth CEVC Primary School
We are very excited to run one mile in aid of sports relief. Despite the cold weather, we are still going ahead to run for sports relief.
7G, Lordsworth Girls School
Our fantastic class have raised over £140.00 for sports relief! We are looking forward to running around our huge playground in the drizzle this afternoon
Year 6, Sudbury Primary School
P1 - P4 at Blackburn Primary School have taken part in Fun Fives all week. Starting on Monday with 5 laps of the playground, finishing today with 25 laps! They've also had a theme to every day - Movement Monday, Ball skills Tuesday, Up, over and Under Wednesday, Throwing Thursday and Freaky Friday!
Adam, Max, David and Ryan, Blackburn Primary School
In my school we are doing 1 mile a day, so we will do 7 miles every week for a month!
Sophie, 10, Glasgow
Our school have come to school today wearing red. We are completing an obstacle course , Aerobics and a mile run - What a busy Day!
Our Lady Immaculate Primary School, Liverpool
Me and my whole school are doing a read-a-thon.
Cody, 10, London
I'm doing a sponsored silence all day.
Carys, 11, Stourbridge
I'm doing a three mile run and a little swim.
Maisey, 9, Southampton
I'm running a sponsored mile.
Adele, 10, Phrudhoe
I am running for 2 miles in my PJs.
Ellie, Dudley, Midlands
We are doing a whole lap around the field at school for sports relief!
Jasmine, Dover, Kent
I am doing a danceathon.
We are doing a Zumbathon.
Lucia, Leonard Stanley, Gloucestershire
In my school we are playing a football tournament and the P. E teachers have to play from sunrise till sunset. We are also having non uniform day.
I am running a mile.
Maryam, Leicester, Leicestershire
For sports relief my school is doing a 1 mile fun run and bringing in £5 for charity.
I am going to school dressed as my sporting hero which is Gareth Bale.
Dylan, Chieveley, Berkshire
I'm running a mile dressed in football kit.
Our school is dressing up as our favourite sports hero (mine is Messi!) and we will be doing sports activities at lunch which will raise money for sports relief.
Our school did our sport relief yesterday because today we are going on a trip to westward ho. Yesterday the school target was to run a marathon which meant each child had to do two laps of the outside of the building. But most people did four or five laps so all together that meant that we did two marathons.
Zak, Combe Martin, Devon