Walk from the castle entrance along Bailiffgate. At a fork, leave ahead along Ratten Row, which leads to an arched gateway and lodge at the entrance to Hulne Park. Keep with the main drive, bearing right and later left past successive junctions. Eventually, after a mile (1.6km) you will reach a junction, from which a track taking the red waymarked trail towards Park Farm leaves to the right.    

You will later return to this point, but for the time being, remain with the main drive for a further 0.25 miles (400m) to the next junction. Following yellow waymarkers, turn left along a rising gravel track. Keep right at successive forks into forest, in time reaching a hilltop clearing. The Brizlee Tower can then be seen over to the right.    

Continue with the track, which swings around the western end of the hill, where the Long Stone looks out across the Aln Valley. The gated drystone-walled enclosure to the left is a private burial ground for the Percys. Carry on around the hill to a crossing and turn left, shortly passing the Hermit's Cave. Keep right at the next junction, dropping back to the main drive. Go right again to return to the junction above Park Farm. Now following red waymarkers, go left. After only 50yds (46m), turn off left on a rough track that descends through woodland for over 0.5 miles (800m) before reaching the Iron Bridge across the River Aln.

On the opposite bank, swing right above the river. After 200yds (183m), leave the track and climb a grass bank towards Hulne Priory on the hill above. Entry is through a doorway in the corner of the high wall.    

Leaving the priory by the same doorway, follow the wall away to the right. Reaching a junction beyond the outer wall, bear right on a downhill track marked with red and blue arrows. At the bottom, join a riverside track from the right and continue along the valley for 0.75 miles (1.2km).    

The track crosses the Aln on Filbert Haugh Bridge. On the opposite bank, keep ahead with the main track (still indicated with red and blue markers), later passing Monk's Bridge. Keep left at a subsequent fork, passing Duchess's Bridge, before eventually reaching another junction in front of a grass triangle. Swing right up to the main drive. There, turn left and walk out past the lodge back into town.