Sao_Martinho_Bay Sao_Martinho_Panorama Sao_Martinho_View Sao_Martinho_do_Porto Sao_Martinho_do_Porto_Night

In São Martinho do Porto as well as in the surrounding area there are many things to do

A few ideas:

Paragliding Your first experiment? Or do you want to be more experienced? In Serra dos Mangues, from the Praia Salgado cliffs, jumps are organized on a regular basis. (website only in Portuguese) 
Hanggliding (website only in Portuguese)
Sailing, surfing, canoeing On the bay, from the quay: (website only in Portuguese)
Market (except Mondays) Covered vegetables-, fruit- and fish market São Martinho do Porto
En nog veel meer in de regio:  Costa de, informativ website about the BWest part of Portugal