Considering the Hotel Bernieres in Caen?
A VT member wrote the following comment about visiting Caen:
Inside the castle of Caen by Pavlik_NL
The terrain of the old castle of the Normandian dukes holds many surprises to the visitor. Besides the museums that I will mention later, there are small gardens (former vegetables and herbes gardens), a playground for children, the castle chapel, remains of the donjon where the dukes lived and several other buildings with a variety of functions. At the ticketoffice in the building at the gate, one can obtain tickets for guided tours around the whole castle interior, during which many details of the building and the history is explained.