The Gîte du Port is located 20mn walk from the town of La Charité-sur-Loire, the site of the 2nd Clunisian Abbatial priory after Cluny itself (ca. 1000 AD).
La Charité also organizes a yearly "Festival du Mot" book-fair. A local food and vegetable market is held every Saturday morning. See La Charité sur Loire tourism office for more details.
45 mn drive from the Gîte westwards is Bourges Cathedral, a world renowned cultural heritage site. See link
About an hour and a half's drive eastwards is the Vézelay Abbey (Basilique Sainte Marie-Madeleine), world cultural heritage site (Gothic) (link)