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

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

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

Twenty-five years ago, large chunks of Eryri’s Aran range were out of bounds. That all changed in 2000. To celebrate a quarter-century of the legislation that changed the game, Trail set out to walk the entire ridge… unobstructed.

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

Natural beauty, bracing air and panoramic views define these five lofty layouts