Monte Ulia Coastal Path to Pasaia

The Monte Ulia coastal path links the Gros district of San Sebastian (Donostia) with Pasai San Pedro in Pasaia, Gipuzkoa, along a cliff-top route in Spain's Basque Country. Tour operators describe about 8 km one way, while the official Pasaia walking leaflet gives a 9.6 km route taking 4 to 5 hours. The highest point is about 230 m and total ascent is roughly 350 m, which puts the walk in the moderate range. The start is the Iglesia del Corazon de Maria in Gros, reached on foot from Zurriola beach or by Dbus city bus; no permit is required and parking in Gros is limited. The path is mainly dirt and rock track with some stone steps and roots, passing through mixed woodland that gives frequent shade, then opening onto exposed cliff edges with views over the Bay of Biscay. Several sections run close to drops, so care is needed in wet weather when the clay becomes slick and some stretches turn muddy. Landmarks include the old tramway line, the remains of Fort Mompas, small viewpoints over the sea and the descent towards Pasaia harbour with its narrow entrance channel. The route forms part of the coastal Camino del Norte pilgrim path, so waymarks showing the scallop shell and yellow arrows can help with navigation. Turn-around points are limited, because there is no direct return along the cliffs apart from retracing the route, so most walkers continue to Pasai San Pedro and return by the Pasaia ferry and bus to Donostia, with timetables available at turismopasaia.com and dbus.eus. There are no refuge huts and no dependable water points on the hill, so about 1.5 L of water per person is sensible. Cafes and bars await in Pasai San Pedro and across the harbour in Pasai Donibane. A map or offline GPS track is advisable because paths branch and mist can reduce visibility.