Lake Vico sits in the flooded crater of an extinct volcano in northern Lazio, ringed by forested hills and the broad slopes of Monte Venere. It is one of the best-preserved volcanic lakes in central Italy, smaller and far quieter than nearby Lake Bracciano or Lake Bolsena.
Dense hazelnut groves and oak woods press close to the shoreline, which kept the lake relatively untouched for decades. A small beach area on the northern shore now offers swimming and fishing in summer. The Lake Vico Nature Reserve is good walking territory, with trails through chestnut forest and views down to the water from the crater rim. The medieval hill town of Ronciglione perches just to the south, and nearby Caprarola holds the Villa Farnese — one of the finest Mannerist palaces in Italy, visited by surprisingly few tourists.