Île du Château, Protected river island near Château-Gaillard, Les Andelys, France
Île du Château is a protected river island in the Seine near Les Andelys, featuring aged willow trees, sandy beaches, and dense thickets. The site spreads along the river with a mix of natural features and vegetation zones.
The island was acquired in 1909 by a British magistrate who named it Avalon. This acquisition marked a turning point that eventually led to its protection as a natural area.
The island was formerly called Île d'Andeli and now serves as a protected natural zone for research and environmental education. Visitors can observe from the quays how the site maintains its conservation focus today.
The island is best viewed from the quays, particularly near Port-Morin below the suspension bridge. A walk along the waterfront in Petit-Andely provides clear views of the site.
Goats roam freely across the island and naturally manage the growth of stinging nettles in the damp meadows. This simple approach keeps vegetation balanced without needing artificial interventions.
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