Château de Grimaud, an 11th-century medieval fortress in Provence's charming Grimaud village, dominated the Garde valley and overlooked the Gulf of Saint-Tropez. Originally featuring four corner towers, it was demolished partially by Cardinal Richelieu during the Wars of Religion, leaving impressive high walls, crenellated ramparts, arrow slits, underground passages, and cisterns. Today its atmospheric ruins, standing 7 metres high and surrounded by characteristic Provençal alleys, serve as a breathtaking backdrop for open-air summer theatre, with terraced seating rising to the castle and commanding views across the countryside and gulf.