Ringed by lofty beech trees and standing alongside the ancient Ridgeway National Trail above the Vale of White Horse near the village of Ashbury, this impressive stone-chambered long barrow is over 5,

NEWCASTLE AND MARDU CIRCULAR Level Easy Elevation gain 217m Length 6.1km (1hr 49min) Description This round-the-hill loop trail from Newcastle leads through peaceful rural landscapes and small village

■ Distance: 3½ miles/5.6km ■ Time: 3 hours ■ Grade: Easy

Kerry Walker takes a road trip through Bannau Brycheiniog National Park

■ Distance: 10 miles/16km ■ Time: 5 ...

■ Distance: 10 miles/16km ■ Time: 6 hours ...