Lago di Posta Fibreno

An idyllic stretch of water in the province of Frosinone

Recognisable for its narrow and elongated shape, Lago di Posta Fibreno is part of the Lazio Region’s Sistema dei Parchi e delle Riserve Naturali. This karstic lake covers an area of about 75 acres at an altitude of almost 300 metres above sea level. It falls entirely within the province of Frosinone, in the Valle di Comino, on the border with Abruzzo and Molise.

The “Lago della Posta” is a huge spring of crystal-clear water, from the slopes of the nearby Monti della Marsica, and is populated by herons, hawks, foxes and other predators. This makes it popular for birdwatching, but it is also frequented by divers, who admire its rare species of underwater flora and fauna.

A notable feature of Lago di Posta Fibreno is the “Rota” – a kind of natural floating island, known since the time of Pliny the Elder. It is made up of peat and shrubs and constantly changes position, depending on the winds and currents. This entirely spontaneous phenomenon enchants and intrigues visitors with its fluctuating magic dance.