Organisers of the Downham Games are inviting members of the community to see who can notch up the most steps.
Beginning on Thursday, May 9, the challenge involves participants recording their mileage or steps throughout the month.
The winning individual or team which has gained the most steps will be announced at the Games on Sunday, June 9.
A number of schools and gyms have already signed-up to take part and it was hoped businesses, running and sports clubs and individuals will also take part.
The Games, in its eighth year, is supporting mental health charity West Norfolk Mind.
Organiser Frances Rayner said: “The correlation between physical activity and mental health has been proven and we hope that this year we can help to bring about more understanding in the community.”
She also thanked staff at Downham Tandoori which has provided pedometers.
Zena Penty, of West Norfolk Mind said she was absolutely delighted Downham Games had chosen to support the charity.
She said: “It’s a very inclusive community event which will motivate people to try new activities which hopefully they will continue to participate in.
“The inclusion of schools in the step challenge will very much help us raise awareness of our services and we would like to thank the local businesses for their support.”
Anyone wanting information is asked to contact Frances Rayner on 07802448836 or email firstname.lastname@example.org