Walking time: about 3h - loop tour - moderate difference in altitude - suitable for everyone from 6 years of age.. Meeting point in Pian della Regina (1,700 m above sea level) for the excursion to the sources of the Po and the four lakes: Fiorenza Chiaretto, Lausetto and Superiore. One of the most beautiful and popular destinations in the area! We are in the heart of the Monviso Park where in Pian del Re, plateau at 2,020 meters above sea level, flows the Po, the longest river in Italy that crosses it north from west to east (conventionally indicated by a well-marked rock).Pian del Re is home to a rich peat bog, an environment of considerable ecological interest, which is born from the progressive burial of the bodies of water and characterized by a unique and specialized flora, adapted to colonize soils saturated with moisture.To frame this wonderful itinerary he: the Stone King so called for his 3,800 meters. Recognized by UNESCO as a Biosphere Reserve. It is the highest mountain in the Cozie Alps. Its pyramidal shape and the fact that its peak is higher than 500 m of the surrounding peaks allows it to be clearly visible even from the Padana Plain. Packed lunch during the excursion.