Enjoy a gentle one-hour stroll along the edge of Dunstable Downs, where Dr Morrison will reveal clues hidden in the landscape: from prehistoric settlements to more recent archaeological finds.

Along the way, young explorers can join in with a special Eye Spy challenge, spotting key features as they walk.

Distance: 1 mile

Free, but booking is recommended.

The Nationwide Festival of Archaeology is an annual event coordinated by the Council for British Archaeology.