The Abbey can be visited
Abbaye Notre-Dame de la Grainetière

The Abbaye Notre-Dame de la Grainetière, a historic monastery, is located in the Pays de la Loire region of France. This former abbey stands as a testament to medieval architecture and monastic life in the Vendée.
History+
The origins of the Abbaye Notre-Dame de la Grainetière date back to the 12th century. It was founded between 1134 and 1143 and was consecrated to the Blessed Virgin Mary. For centuries, monastic life shaped the site until the abbey was secularized and dissolved as a monastery in 1536.
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This description draws on the facts documented in the linked Wikipedia article; Wikipedia content is licensed under CC BY-SA 4.0. Wording and editing: Mobile History.
Location: 46.8304, -1.0595