Niort Marais poitevin – Vallée de la Sèvre Niortaise Tourist Office offers practical informations to book and organize your trip in Niort and in the Marais Poitevin, “Grand Site de France”.Gites, hotels, guest houses, campsites… come and relax in a quiet place, over the river Sèvre Niortaise and its castles. Ride by boat, by walk or by bike : conquer the Green Venice. Discover animations, activities, sites you must see, restaurants… to move during your next holidays between plain and marsh.