The port of Viana is huge, and is at the mouth of the Lima River, opposite the Castle of Santiago da Barra, which was built specifically to defend it from attacks/looting in the sixteenth century. On one side of the castle is the commercial port with huge cargo ships, cranes and a building that houses the port offices, the other side is the fishing port with small fishing boats, a multitude of nets, stacked fishing baskets and Viana shipyards. At the end of the spring is anchored Eannes Navio Gil, a hospital ship that has been converted into a tourist attraction/museum that can be visited inside - it's amazing!
What most caught my attention about this place is that this marina is located on the river: it is situated at the estuary of the river Cávado. Here you can see small boats in the harbour and take part in recreational sports, although there is also the possibility of going fishing. It is a very windy place but there are no waves, so it is very common for people to go kitesurfing. It is a newly renovated waterfront with cafes and terraces, public swimming pools, and the Esposende maritime center.
Following the banks of the Miño river to its mouth, not far from Valenca do Minho, is the small town of San Pedro da Torre. The most interesting thing about this town, for me, was its small little port on the banks of the Miño, a place full of life, where you can see the fishermen doing their daily chores, untangling their nets, cleaning their small boats, chatting and watch their friends fishing downstream. Although I am not familiar with this area, I think the fishermen are becoming fewer and fewer in this river, in this part of Spain and in Portugal, and so I find it very curious. Unfortunately, places like these and in this river, the fishing has almost completely disappeared because of the huge amount of pollution killing off the fish, but this is only my opinion. When we went in January, the fishermen were mainly fishing lamprey to be sold to restaurants and individuals, a very typical dish here, on either riverbank.
Póvoa de Varzim has always been closely linked to the sea and its inhabitants were mainly engaged in fishing. But in the twentieth century it has undergone a transformation and has become one of the most important tourist centers of northern Portugal, given its magnificent stretches of golden beach. Vacationers are "elite", due in large part to the Grand Casino and the marina for pleasure craft. The marina is in the south of the city, out towards Vila do Conde, it has 241 berths for ships up to 18 meters long and 3 deep. It also has a Yacht Club (Club Náutico) with a bar and restaurant.
Póvoa de Varzim owes its development to fishing. This activity goes back to the eleventh century, and in the eighteenth century it became the main fishing port in the north due to its sheltered bay. There's even a typical boat that originates from this town - the "lancha poveira", as there were many canneries. Póvoa is a traditional fishing village that retains its picturesque harbor and fishing neighborhood, in the south, which can be reached by a pleasant walk along the newly renovated Avenue of Discovery. Due to boom in tourism it now has a modern marina for pleasure craft.