From Typically Spanish:
The remains are said to be of a salt fish factory dating from the fourth century BC
La Verdad newspaper reports this morning on the remains of a Roman salt fish factory uncovered on a building site in La AzohÃa, near the marina. The discovery was made some months ago, in survey work taking place as part of requirements for granting a building licence.
Archaeologists say the find could date from the fourth century. The site has been fenced off and any building halted while the archaeological excavations take place.