Posillipo Coast: Marechiaro to Gaiola Walk

The coastal walk from Marechiaro to Gaiola follows the cliffs of Posillipo, the residential headland on the western side of Naples in Campania, Italy. The route links the fishing hamlet of Marechiaro with the Gaiola islets and the Gaiola underwater park, using Via Posillipo and the Discesa Gaiola. Visitors can reach the area by Metro Line 2 or Line 6 to Mergellina, then an ANM bus along Via Posillipo toward Marechiaro (line and times to be checked at anm.it), or by taxi from Mergellina in about 15 minutes. Street parking is limited, especially in summer. The walk is free, and the Gaiola protected area charges only for its own activities (gaiola.org, +39 081 240 3235). The distance is about 2-3 km one way, with roughly 80 m of cumulative stairs, and takes 1.5-2 hours with stops. Technical difficulty is low, but the steep stair descents to small rocky coves can be tiring on the return. The surface is a mix of paved lanes, old stone steps and uneven rock near the water, with exposure to sun along open stretches and shade in places under pines and walls. Landmarks include the historic seaside houses of Marechiaro, small coves used for swimming in summer, the Gaiola islets and the remains of Roman-era structures that lie along this coast. A natural turn-around point is the Gaiola viewpoint, after which visitors return by the same route or by bus. Water sources are limited, though bars and restaurants at Marechiaro serve refreshments in season. There are no refuge huts, but sections of the coast have walls and trees that give partial shelter. In summer, the Gaiola park has booking rules for access to its beaches and activities, so visitors should confirm current arrangements at gaiola.org before planning swimming. Sea conditions can make rocky coves hazardous, so footing should be checked before entering the water.