The Blue Trail is the coastal footpath that links the five villages of the Cinque Terre, and the section through Corniglia is the central one. To the south, the path drops through vineyards down to Manarola in around an hour; to the north, the harder stretch climbs through the macchia and pine woods to Vernazza in around 90 minutes. Both segments give you the views that postcards are made of.
A pass is required — buy the Cinque Terre Trekking Card at the station or trail entrance — and stretches of the trail close after heavy rain or landslides. Check the official park website before setting off and start early in summer: there is almost no shade once you leave the village.