90-minute guided tour round the two-kilometre circuit of the City’s historic walls, with insights into their construction in Roman times, their survival through two millennia, and their continuing importance.
Parts of the City Walls are difficult for access and do not allow dogs. Detours are possible by arrangement. Tours are free to students and accompanied children.
Sundays June 15, 22, 29, July 6, 13 at 14:00.
The 2025 festival will run from Saturday 14 June to Sunday 20 July.