This charming nature trail, about 600 m long, starts from the Green Power Garden, then – following the river – reaches the water intake on the Maresca stream. The old artificial canal, running on the side of the route, served the purpose of powering the ironworks at Pontepetri, dating to the 18th century and decommissioned in 1978. This area is also ideal for taking a delightful walk in the midst of nature. You can use its tables, benches and barbecues so that it becomes a perfect place for an outdoor picnic.