The only signaled Coastal Route for the Portuguese Caminho, goes out from Porto.
The markings for the Portuguese Caminho goes directly both with the description from a 15th/16th century monk, that went from Lisbon to Santiago, and also with the tracks of the XIX Roman Road.
Rota Vicentina it’s also part of the Caminho, has the “end” of it it’s located in Santiago do Cacém, a city that has a beautiful St. James church.
Some say that the Caminho in Portugal goes from Lagos, all up until Lisbon, Lisbon to Porto, and Porto to Santiago.
The best thing for you to do, if you really want to do only coastal walking, it’s to contact somebody from the post that Laurie (@
peregrina2000) showed.
Just pay attention to one thing: for what I remember, prepare for a lot of road walking, and if you are going to do it, take a GPS with you, since there isn’t’ in there any kind of markings (or probably, you will find some, but only in big cities, just like Torres Vedras).
You can always contact Via Lusitana, the Portuguese pilgrims association, to know if they know something about it. You can find their website in
http://www.vialusitana.org/
All the best for your Caminho.
Best Regards
Diogo