The Bosco Tanali reserve occupies 150 hectares of woods and reeds on the western side of the Padule (marsh) di Bientina, the former bed of the ancient lake Sextum, the largest lake in Tuscany drained by the Grand Dukes between the 18th and 19th centuries.
The subsequent works of land reclamation with the swamping of the Rio Tanali have created rare habitats such as the wood with the black alder, the poplar, the oak and the “cariceto”, that is the permanent wetland to protect species at risk of extinction. The area is a small paradise for birdwatchers thanks to paths that lead to strategic observation points hidden in the vegetation.
The Municipality of Bientina has given the management of the reserve to Legambiente Valdera. It is open all year round with guided tours, with entrance in Caccialupi (SS 439 Sarzanese-Valdera Road). The Environmental Education Centre contains photographic and information material.