9-miles of stunningly beautiful scenery up and down a steep rocky trail from Montorosso to Vernazza to Corniglia ("tre" of the "cinque" towns). It involves steep climbing up rough stone stairs and walking on loose rocky surfaces. We could only go as far as Corniglia because the trail to the two further towns is closed, because of damage from a devastating flood in 2011. We took the train from Corniglia back to Levanto