Guided tours, mostly in French with some English commentary, are conducted in June through September. Monday through Saturday (July and August only) at 3pm there is a 2-hour tour for 7.50€ a person. Be prepared for a strong dose of French medieval history and lots of crumbling Romanesque stonework. Or, take matters into your own hands and take a 1.5-2 hour self-guided tour with the help of the Poitiers-zevisit application (available for iPhone, Android, and Windows phones). For more information and details, refer to the tourist office above.
Note: This information was accurate when it was published, but can change without notice. Please be sure to confirm all rates and details directly with the companies in question before planning your trip.