Coastal Route (Lisbon to Cabo da Roca) II
From Jamor you can get to Caxias and pass by one of the many lighthouses of this coast. Caxias has the Royal Carriage a nice bar inside a train carriage, the Royal Farm of Caxias with its beautiful garden although a bit degradated, São Bruno Fortress dating from the XVII century and the beach.
There is a nice hotel between Caxias and Paço de Arcos by the sea called Hotel Solar Palmeiras in a XIX century manor house (http://www.solarpalmeiras.com/).
Next youll get to Giribita Fortress dating back to the XVII century. You are now entering in Paço de Arcos with its Ancient Cars Museum (http://cpaa.no.sapo.pt/, open Thuesday to Friday from 10h-13h and 14h-17h; cost 1,75€), some palace houses (such as Arcos Palace), churches (such as Cartuxa Convent) and a nice beach. In Paço de Arcos there are some nice restaurants such as Casa da Dízima (http://www.casadadizima.com/, an XVIII century house, a meal is around 30€), os Arcos also in an old house (meal around 35€) or Casa Gallega (with spanish food, price around 30€). There is also a huge jack in the middle of the small bay and many fisherman boats. From Paço de Arcos starts SATU (one way is 1€, return ticket costs 1,50€) the only monorrail in Portugal that has only 2 Kms and goes to the 10 acres Poets Park (called this way because it has statues to the main portuguese poets it had a lagoon where you could learn how to windsurf but not sure if it still exists) and Oeiras Park Shopping Centre (179 stores, a hypermarket, cinemas, etc...).
In Estrada Marginal, if you look to the entrance of the river Tejo you'll see the Bugio Fortress in the middle of the sea.
From Paço de Arcos you are at one step of entering the main town aroud, Oeiras. Oeiras is a dynamic town with 35.000 people and 162.000 habitants in the district. It has some nice churches, a palace (that is today a university and that has nice gardens), gardens, beaches, fortresses (closed to the public), a marina (with restaurants and bars, and close by another train carriage bar) and an open air sea swimming pool. In Oeiras you'll find the Catalazete Youth Hostel (http://juventude.gov.pt/Portal/Lazer/en/PousadasRegiao/praia/PCatalazete.htm), a nice state hostel by the sea.