Free community 5k and junior events at parkrun

parkrun organises free, timed weekly 5k events for adults and separate junior events for children (typically a shorter distance for ages 4–14) at parks across the UK; anyone can take part after registering once online. Events are volunteer-led and free to join, with simple online registration and a barcode to bring on the day. parkrun is open to all fitness levels, and the website lists local events, registration details and guidance for first-time participants.