Adjacent to the Heri Es Souani lies an enormous stone-lined lake, the Agdal Basin, built in the 18th century as both a reservoir for Moulay Ismail's gardens and a pleasure lake. Originally it was surrounded by high walls and fed by a complex system of wells and aqueducts. Today the water is stagnant, but it's still a pleasant place for photos, perhaps by the Giacometti-like statue of a traditional water-seller that sits at one corner.