Parco Fluviale dell'Alta Val d'Elsa, Protected natural area in Colle di Val d'Elsa, Italy.

Parco Fluviale dell'Alta Val d'Elsa is a protected area following the Elsa River with steep banks, waterfalls, and wooden walkways built between the rocks. The landscape includes different formations, from dense vegetation to open water stretches where the river flows over natural obstacles.

The protected area was established by the Tuscan regional council on 16 July 1997, at the request of Colle di Val d'Elsa's municipal administration. The river's water system, with the Steccaia and Callone Reale, has channelled water into the gore since at least the 11th century, powering mills, paper mills and ironworks. Grand Duke Ferdinando I de' Medici ordered its restoration in the 17th century.

The thermal springs in this area drew people seeking their healing properties in ancient times and continue to be visited today. Walkers passing through can still discover these natural warm waters as part of their journey along the river.

A marked trail runs along the river with wooden passages and rest spots for breaks. Visitors should wear sturdy footwear as the path crosses rocky areas and wet sections.

The Diborrato is a roughly 15-metre waterfall where the Elsa drops into a pool about 10 metres deep. The river's amphibians include the southern crested newt (Triturus carnifex), alongside the common newt, the Italian tree frog and the green frog.