The Monsanto Forest Park is one of the largest green spaces in the city, and a haven for many people, locals and tourists alike, as it covers an area of approximately one thousand hectares, and is decorated with dense forests and diverse plants, in addition to a unique ecological garden aimed at educating visitors environmental variables, in addition to long paths and areas designated for hiking and cycling; In this wonderful garden there is an observation deck studded with reliefs and offers a panoramic view of Lisbon.