For a walk which visits quiet hills and explores post-industrial dereliction, Eryri ’s Moelwyns are second to none.

■ Distance: 8½ miles/13.7km ■ Time: 5 hours ■ Grade: Challenging

■ Distance: 7½ miles/12km ■ Time: 3 hours ...

■ Distance: 9¼ miles/14.8km ■ Time: 4 hours ■ Grade: Moderate

■ Distance: 5¾ miles/9.2km ■ Time: 3 hours ■ Grade: Moderate

Kerry Walker takes a road trip through Bannau Brycheiniog National Park