Pre-Roman cyclopean construction. The origin and role of El Higuerón are not entirely clear. Concerning its origin, it is very likely that it was built during the Iberian-Turdetan period. It can be dated between the 5th and 2nd centuries BC.
As to its purpose, based on the archaeological remains, it seems that the building may have been a means to contain and protect the area from flooding.
Several suggestions have been put forward about its origin and function without historical basis. However, it seems clear that it was neither a port nor quay where ships docked – there are Roman remains in its foundation - nor a Phoenician construction, as has been claimed and reported to date.