Olympic champion Sharron Davies will visit a school in Chippenham today to help kick off The Big Pedal.
It's a three week event which encourages children and their parents to use bikes or scooters for the school run.
Thirty-six schools in Wiltshire have signed up so far.
It comes as a YouGov poll revealed that children in the South West are getting less exercise than others around the country.
Team GB athletes both past and present have been touring the country this weekend to inspire people of all ages to get involved in sports. As part of the Join In sports campaign, Daley Thompson and Sharron Davies met children at Ninja Tots in Chippenham. See Alexandra Lodge's full report.