San Fernando is on the coast, just 10kms south of Cádiz. It's a modern -su-interior-pueblos-blancos,town. There are about 87,000 people living in it. It`s geographically positioned like an island between the salt lakes and the Atlantic ocean. It was once known as La Isla de León. Nowadays local people simply call it La Isla or (The Island).

Traditionally, San Fernando has been involved with naval construction. The nearby salt works have also contributed significantly to the economy.

It looks like a typical Andalucían town. The houses have traditional Spanish doors, facades, and wrought iron windows.

San Fernando is home to the oldest observatory in Spain. The Marina Astronomical Observatory was built here back in the 18th century.

Unique to San Fernando is a shellfish dish called Bocas de la Isla. It's made from a type of crab who's claws grow back, when severed.