Hundreds of children streamed through Astley Park as they took part in a fun run on Saturday.
The INEOS GO Run For Fun event saw 800 children run through the park, cheered on by crowds of supporters, campaign mascot Dart and Chorley School Sport Partnership.
It was one of a series of events being held around the UK throughout the year to encourage children to get off the couch and be active.
Figures show that 30 per cent of 10 and 11-year-olds in Chorley are overweight and 14 per cent are obese.
Coun Hasina Khan, lead member for health and wellbeing at Chorley Council, said: “It’s great to see fun activities taking place that encourage young people to get active.
“With the temptation to stay indoors and play on your phone, watch television or play computer games, it’s really important children do get outdoors and take part in exercise.”
Gemma Stokes, partnership manager at Chorley School Sport Partnership, said: “Chorley School Sport Partnership was really pleased to partner Go Run For Fun in our annual schools cross country event.
“This was the biggest event of the year in the primary sporting calendar.
“It helped us to achieve our aim of providing a range of exciting sporting opportunities for young people to inspire them to be more physically active, lead healthier lifestyles and to be good at sport.”
For more information about INEOS GO Run For Fun events, visit www.gorunforfun.com.