“The 100 Loveliest Detours in France” is an association of little towns in France which are not on the main roads but which possess top-level tourist, heritage and cultural interest. Châteaudun has been part of the network since it was set up in 1998.
The Guide to the Best Detours in France 2023 is available free of charge on request from the Tourist Information Office reception desk (this guide cannot be sent by post).