Next to Cinque Terre you have another gorgeous itinerary along the Riviera di Levante, in Liguria. It touches enchantable resorts like Portofino, Chiavari, Rapallo, Camogli, and Santa Margherita Ligure.
(view on the interactive map)

Liguria - Camogli, San Fruttuoso
(photo by Twice25 ; this image is licensed under the Creative Commons)

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The Cinque Terre is a coastline area in Liguria including five picturesques small villages built into the rocks between the beach and the hills.
The following video is about the hiking trail linking the five villages.

(via YouTube).