2k run for juniors only (4-14 year olds), marshalled. Parents can run with children or not, whichever suits them all. You can register online before your first event; you will then get a personal barcode which means you can see your time each week, so you can race against your own PB (personal best time). It's for every ability: walking round is fine and not at all unusual. You can take a buggy with a younger sibling if you are accompanying an older child.