07 hertfordshire london colney

■ Distance: 9 miles/14.5km ■ Time: ...

■ Distance: 6¾ miles/11km ■ Time: 2½ hours ...

■Distance: 9 miles/14.5km ■Time: 5 hours ■Grade: Moderate ...

■ Distance: 7¼ miles/11.6km ■Time: 3½ hours ■Grade: ...

After 150 miles the wonderful London Outer Orbital Path brings you back where you started – but we can’t promise it’ll be the same person who arrives.

■Distance: 5½ miles/8.8km ■Time: 3 hours ■Grade: ...