Close to Caños de Meca, this natural monument is near the Cabo de Trafalgar Lighthouse. Its beautiful landscape is a mix of fine sand dunes, wide beaches and a rocky area on which the lighthouse sits.

The sand brought in by the tides created a causeway that links the islet to the coast, surrounded by a rain-filled depression. As the tide went out, the wind caused dunes the form on the beaches to the south of the islet, contributing to its fossilisation. On the old coast, the easterly winds caused another dune system, which is now covered with juniper and mastic trees.

Flowers such as malcolmia, sea daffodil and sea holly are strewn across the sands like a colourful blanket. This covering of marram and Poaceae grass, which holds the soil together, protects the sea spurge. In areas where the soil is stable, lotus, mugwort and maiden pinks appear.

Reeds grow in the flooded areas, lending themselves as perches for birds such as Audouín´s gulls, wood sandpipers, sandwich terns, Caspian terns and the bar-tailed godwit, as well as egrets. The beaches are home to purple dye murex, green shore crabs and the colourful orange starfish.

However, what really makes this place special is its history. Around the lighthouse there are archaeological sites such as a Roman temple dedicated to Juno, complete with sacrificial altar and fish-salting factory. Part of a 9th century watchtower built by the Moors is still preserved, though it was dismantled in the 19th century to build the current lighthouse. More interestingly yet, the Battle of Trafalgar in 1805 took place here, leading to the tragic death of 5000 soldiers, the sinking of innumerable ships and the loss of Spanish naval hegemony before the British Navy.