Polino

The Valnerina

Facts checked: July 2026 – including a correction most guides (and even the Comune di Terni’s own tourism page) get wrong, below.

Polino sits at 835 metres up its own mountain road, a borgo of 233 residents that is the smallest comune in the province of Terni. (You’ll read “smallest in Umbria” everywhere, including on official pages – it isn’t: tiny Poggiodomo in the Perugia province, population 81, holds that record. We checked the ISTAT tables so you don’t have to – here they are.) What Polino offers is altitude: mountain air, big views, a small castle and a walk to a vanished border.

The Rocca — and the museum inside it

The village grew around its 12th-century Rocca, the fortress of the Polini family, its cylindrical tower rebuilt in Renaissance form and now owned by the comune (Vivi Terni). Inside is a quiet surprise: the “Sotto-Sopra” museum-laboratory of the Umbrian Apennines – an interactive science-and-nature museum aimed squarely at children; opening is informal in a village this size, so check with the comune before you make the drive. Outside, the 1615 Castelli fountain anchors the village square.

The border walk — Salto del Cieco

From the village, the official Nera River Park route runs to the Salto del Cieco: 3.8 km, about an hour and a half, easy T-grade walking (the park’s route sheet). The payoff is historical as much as scenic: this was the frontier between the Papal States and the Kingdom of Naples, and the ruins of the old customs post still stand where two vanished countries once met – smuggler-and-brigand country, and it feels it. The gorge below is a protected site. Full route notes and GPX in the hiking library.

Making it worth the drive

Polino is 23 minutes of hairpins from the falls and there’s no restaurant scene – so treat it as the mountain half-day: drive up mid-morning, village and Rocca, the border walk, picnic at altitude (supplies from Arrone on the way), and back down for a late lunch or the falls’ afternoon release. In high summer it’s also the escape hatch – reliably cooler than the valley floor.

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