Legend has it that the town of Las Negras was founded after a maritime tragedy. The men of the nearby town of San Pedro went out to sea on a bad night and never returned. The women, who were widowed, saw the need to get nearer to the rest of the towns to survive.
The name of the new town was given after the mourning of the founding women, dressed in black.
In its origin the town was barely ten white houses very close to the sea. Despite the growth of the town and tourism, Las Negras still maintains the character of the small town it used to be.