In the Sintra-Cascais Natural Park (CNP) and in the Sintra-Cascais natural reserve 2000, the coastal trail stands out for the ruin-like appearance of the coastal sandstone field, the dune system of Guincho-Oitavos, the view from the promontory of Cabo da Roca and, in the background, the Sintra mountain range. Human occupation of the coast dates back to the Palaeolithic period. The place where Quinta da Marinha Marinha isi located today, was where the troops that led to the Philippine occupation (16th century) landed. After the restoration of independence (17th century), a vast defensive line was built along the Tagus bank with sea fortifications that intersected to defend the landing sites from enemies. The Guincho Battery: Crismina (in ruins), Ponta Alta (near the Guincho Hotel) and Galé (Muchaxo hostel) defend the coast near the Guincho beach. This line crossed fire with the Guincho fort (to thee north) and S. Brás de Sanchete (to the south). The fort of S. Brás de Sanchete became the lighthouse of Cabo Raso.