Isonzo Mouth Regional Natural Reserve, Regional nature reserve at Isonzo River and Adriatic Sea confluence, Italy
The Isonzo Mouth Regional Natural Reserve is a protected area at the point where the Isonzo River meets the Adriatic Sea, straddling the provinces of Udine and Gorizia. It covers wetlands, brackish lagoons, reed beds, and riverbanks that form a range of distinct habitats close to the coast.
The reserve was officially established in 1996, following recognition that this stretch of coastline played a key role in bird migration and coastal ecosystem health. Its position at the border between two provinces helped keep the area away from heavy development for decades before that.
The reserve is a well-known meeting point for birdwatchers, who set up along the banks and lagoons to watch species passing through. The landscape shifts with the tides, so the experience feels different depending on when you arrive.
The area has observation posts and offers guided canoe tours with naturalists, which give a different view of the wetlands from the water. Spring and autumn are the best seasons to visit, as that is when most bird species are passing through.
Camargue horses roam freely through the reserve and graze on reeds and vegetation in a way that naturally shapes the open areas of the land. These horses are naturally suited to wet environments and move easily through mud and shallow water.
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