25 aberdeenshire lochnagar

■ Distance: 6 miles/9.7km ■ Time: 2½-3hours ■ Grade: Easy

■ Distance: 5¼ miles/8.3km ■ Time: 2½ hours ■ Grade: Easy

After crossing Scotland on foot following their own bespoke routes, graduates of the TGO Challenge Class of 2025 tell first-hand tales of heatwaves, high camps and bog-trotting through the landscape on this truly unique long-distance journey

■ Distance: 7½ miles/12km ■ Time: 4-5 hours ■ Grade: Challenging

Stefan Durkacz traces an old rail route on a superb full-day walk

Norman Hadley shares a tale of youthful misadventure, when a navigational mistake on the Cairngorm plateau seemed to defy all constraints of space and time