20 northumberland alnwick to alnmouth

■Distance: 8¼ miles/13.3km ■ Time: 4 hours ■ Grade: Moderate

■Distance: 11½ miles/18.5km ■ Time: 6 hours ■ Grade: Challenging

■Distance: 8 miles/13.1km ■ Time: 3½ hours ■ Grade: Moderate

■Distance: 6¼ miles/10km ■Time: 4 hours ■Grade: Moderate

■ Distance: 10½ miles/17km ■ Time: 5 hours ■  Grade: Challenging

■Distance: 5 miles/8km ■Time: 3 hours ■Grade: Moderate