Religious wooden and porcelain Virgins are placed on fishing boats and paraded through the seas.
Accompanied by a flotilla of fishing boats, usually including a brass band, fireworks are set off from the boats as the sun goes down.
Celebrations vary from town to town.
In Malaga, the procession takes place not only on July 16, but on the following Sunday.
While in Estepona a fish-net weaving competition took place earlier today.