Distance: 9½ miles/15.2km Time: 5 hours Grade: Challenging

■ Distance: 10⅔ miles/17.1km ■ Time: 5 hours ■ Grade: Moderate

Whisby Nature Park is an area managed by Lincolnshire Wildlife Trust, rich with wildlife, including birds such as sand martins, chiffchaffs, grey wagtails, and nightingales. Among the varied landscape

■ Distance: 6 miles/9.5km ■ Time: 4 hours ■ Grade: Moderate

■ Distance: 7 miles/11.2km ■ Time: 4 hours ■ Grade: Moderate

■ Distance: 6¼ miles/10km ■ Time: 3 hours ■ Grade: Easy