UNESCO recognises an evolved cultural landscape shaped over centuries on steep and irregular ground. The dry-stone walls, drainage systems, vines and olive groves are not decoration around the villages; they are part of the property’s substance.
Each village has a different relation to water, slope and transport. Corniglia sits above the sea, Vernazza retains a compact harbour, Monterosso has the broadest coastal ground, and Manarola and Riomaggiore occupy narrow valleys.
Trails can close because of landslides, weather or maintenance. Rail and boat services are also variable. A responsible itinerary accepts limits and does not treat every famous path as permanently available.
Use several days, travel outside peak pressure when possible, and let official trail notices determine the route rather than social-media expectations.