Located next to Niort, in the Deux-Sèvres department, Coulon is the gateway to the Marais Mouillé and the Venise Verte, the greenest part of the Marais Poitevin.

This village, the most visited in the region, offers a picture-postcard setting. Arranged in a star shape around its beautiful Romanesque church, the village's narrow streets are lined with low, elongated houses with whitewashed walls and colourful shutters.

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