Praia da Memória
Also a popular one among the locals, this beach is also on the district of Matosinhos being just 18 km away from the city and not at all hard to get to. Great for families in the morning or for the younger crowd in the afternoon, it has a vast space with sand.
On the beach you will find the appropriate beach gear to rent and also restaurants around.
To make the trip a lit bit more historical, you can check out the Obelisco da Memória (or Obelisk of Memory) that was put up there at the year of 1864 as a memoir of when the liberals north troups ship landed there onJuly 8, 1832.