Just a few kilometers from the Terme Marine Leopoldo II, between Castiglione della Pescaia and the Tombolo pine forest, lies one of the most unexpected spots on the Maremma coast. It’s neither a beach nor a forest, but something different: a vast natural oasis—quiet yet teeming with life—that surprises those who least expect it.
The Diaccia Botrona Nature Reserve covers more than 1,000 hectares and is considered Italy’s most significant wetland, what remains of the ancient Lake Prile, a vast basin that once covered almost the entire Maremma plain and was gradually drained by the large-scale land reclamation projects carried out by the House of Lorraine beginning in the 18th century.
Today it is a protected area of international importance, designated a Wetland of International Importance under the Ramsar Convention as early as 1971
What Can Be Done
Birdwatching: This is the main reason to come here. The Diaccia Botrona is a paradise for birdwatchers, with over 200 species of birds recorded throughout the year, about 80 of which are nesting species. Every year, entire colonies of flamingos stop here, but you can also spot herons, little egrets, marsh harriers , black-winged stilts and many other species typical of wetlands. Bring binoculars—they’ll make a big difference.
Boat tour: This is the best activity to do in the Reserve—a small electric motorboat that cruises slowly, accompanied by commentary from an expert nature guide. The tour lasts about an hour and a half. Ideal for families with children.
On foot or by bike: the loop hike starting from Casa Rossa Ximenes is very easy and suitable for everyone, including children and offers the chance to spot various bird species along the way. For cyclists, the Reserve offers a beautiful scenic loop of about 25 kilometers.
The Casa Rossa Ximenes: Located within the reserve is the renowned Casa Rossa Ximenes, a striking structure designed by the Jesuit engineer Leonardo Ximenes in the 18th century to regulate drainage waters. Today it serves as a multimedia museum and visitor center, an excellent starting point for getting your bearings and gaining a better understanding of the ecosystem you are about to explore.
Some useful tips
Spring and fall are the best times to visit. In the spring, wildlife is very active and the vegetation is in full bloom. If your goal is to take extraordinary photos of birds, visit the Diaccia Botrona at sunset—the play of light on the water and the warm colors make for a memorable landscape.
How to get there: From the Giorgini Bridge over the Bruna River in Castiglione della Pescaia, follow the road running parallel to the river to the Casa Rossa Ximenes parking lot
By bike: Easily accessible via the bike path Marina di Grosseto–Castiglione della Pescaia
