Easy valley bottom itinerary reaching the charming ruins of the ancient millstone Paradisi. Departure from km 27.000 of via Flaminia (Castelnuovo di Porto). Possibility to reach the opposite bank by crossing an old bridge, and get to loc. Pian di Lalla, following a trail crossing a woodland (plus 1,600 meters - one hour back and forth) to take on the right the carriage road leading to the panoramic Mt. of Cellano.