Cissbury Ring History and Nature Trail, Sussex East
Circles the ramparts of one of Britain's largest Iron Age hillforts with sweeping views across the South Downs to the sea. Mostly flat on grass paths atop the earthworks, though the initial climb from car parks is moderately steep. Fine for older children who can manage a mile or two, but undulating ground and stiles make buggies impractical. Dogs welcome on leads near grazing livestock. Rich in wildflowers, skylarks, and ancient history—the earthworks date to 300 BC and flint mines beneath are