Parkrun (stylised as parkrun) is a collection of 5-kilometre (3.1 mi) events for walkers, runners and volunteers that take place every Saturday morning at more than 2,000 locations in 22 countries across six continents. Junior Parkrun (stylised as junior parkrun) is a spin-off event that provides a 2 kilometres (1+1⁄4 mi) event for children aged 4–14 on a Sunday morning. Parkrun events are free to enter and are delivered by volunteers, supported by a small group of staff at its headquarters.