The name “Puerto de Cereixo” indicates the existence of a place where boats would dock along the left bank of the mouth of the Rio Grande river. This port would have operated since at least the Middle Ages and could have been the arrival point for pilgrims travelling from England and other countries along the Atlantic coast to visit the shrine in Santiago de Compostela.
The port of Cereixo would been part of a larger configuration which included the neighbouring port of Ponte do Porto, in the adjacent council district of Camariñas. In the Economic Description of the Kingdom of Galicia, a document dating from 1804, Lucas Labrada states that onions from the country were taken from this to other ports along the coast, and for a good part of the 20th century barges would bring products such as wine, the local liquor aguardiente and salt, and take away timber from the sawmills in the area.
A ceramic plaque placed on a house near the border between Camariñas and Vimianzo still recalls this seafaring past.