Saturday, Aug. 13, 2022 at 10:30 p.m. and Sunday, Aug. 14 at 7:30 p.m. on KPBS TV / On demand now with PBS Video App. Arcing along the southeast coast of England, we'll travel from Canterbury to Dover. Then we'll hike the trails that top the towering chalk cliffs of the South Downs, wander into the beachy resort of Brighton, and push on to Portsmouth.