The nearest major city to Thénac is Bordeaux. Take a short trip from Thénac and set some time aside to explore the Bordeaux. Dotted with places like Rue Ste. Catherine, Place De La Bourse, Grande Theatre De Bordeaux; it will definitely be a good idea. Most online packages to this city are of 1-2 days. Home to pretty treasures, Thénac is France's best kept secret.
Don't just take a trip, let the trip take you! Have a enjoyable time at Thénac.