The mouth of the river was splattered of pesqueiras (kind of fishing weir carved on the rock). In the O Muíño beach and O Puntal, when the low tide can be seen the remains of these 18th century fishing structures. It is a semi circular stone enclosure where the bait was thrown to lure the fishes which stayed trapped inside when the tide went down.
In the 19th century are built several cetareas. Placed near to the tidal zone, the necessary water to keep the shellfishes alive went inside of the cetarea, there the lobster, the spiny lobster or the velvet crab or necora are kept sheltered in the hatchery. There are still remains of some of this cetareas, being the best known the Rounded Cetarea or Pepe Sobrino’s that is also the best preserved and most accesible when the sea circumstance allows.
The coastline of A Guarda, whether the final stretch of the Miño river or the oceanic coastal have an important number of salinas (saltern ponds), sometimes isolated and a lot of times carved on the rock. The salinas display a two centimetres depth carving work. In 2015 was made an archaeological intervention in O Seixal that led to confirm the existence of important salinas, probably dated back in Roman times.
The gamela is one of the oldest traditional fishing boat used until recently by the A Guarda low-waters fishermen. it is a wooden boat of around 5 metres in length and 2 metres in beam, with a bottom flat and propelled by oars or sails.
Is part of the historic core and is one of the most characteristic pictures of the town. It comes up from an architectonic typology, the seafarer’s buildings between dividing walls, typical in all of the galician Rías Baixas. This façade is comprised in the seafarer district and its oldest buildings are located between the promenade and the Malteses street. The origins of this neighbourhood date back to the 15th and 16th century, when the first settlers dedicated to the fishing labors arrived. Until recently has been inhabited just by sea-faring families. Due to the colorful and shapes variety is one of the most photographed and meaningful urban landscape of A Guarda.
Traditionally the Miño river seashore had a significant importance as port. In the 19th century at the A Pasaxe neighbourhood (Camposancos) the facilities were refurbished and improved with the built of this piers called As Docas, to permit the ship’s berth and make easy the goods load and download. Recently they were strengthened and they are still used by the fishing and recreational boats, and also have green and leisure zones. There are also shipyards engaged in building and repairing traditional fishing boats.
The cultural heritage doesn’t bounded to artifacts and monuments, it also includes the knowledges and techniques transmitted between the different generations. A Guarda carried out a very important work preserving this intangible heritage with the varied editions of the Mostra das Tradicións Mariñeiras (Sea-faring Traditions’ Exhibition) and with the compilation and exposure of the contributions of the elders in the project “Tesouros Vivos do Mar” (Sea’s Alive Treasures).