A large cistern on the north-east parts of the grounds can be accessed by a set of steep stairs. The Cistern of Moura, is a 10 meters (33 ft) high, 820 square meters ( 8,800 sq ft) superficial area, with five naves marked by four orders of columns. Now this cistern displays an exhibition about the conservation of the Iberian Lynx.
Next to the castle, there is a small space with a fountain in the middle, on the western side. Here, Ramparts of the castle are joined here by the Silves City Walls. In the middle of the castle, trees are planted to provide much needed shade and greenery.