Our Guide will walk with you along these walls that carry centuries of history. From the neolitic records and ruins, to the early Roman fortification this Castle located between the Tagus and Sado rivers boasts a view that streches up to Lisbon and all over the Blue Coast and Arrábida Mountain. Part of the triangle of defence of Lisbon to the south, this monument also has moorish and portuguese influences being the stage for many battles during the period of the Reconquista. One of the main bastions of the knights of the order of Santiago.