Bolonia is a tiny village, halfway between Zahara de los Atunes and Tarifa, on the Costa de la Luz with several kms. of magnificent unspoiled beach with a mean width of 70 meters. It is considered one of the last unspoiled beaches of the Iberian peninsula with hardly any human presence or construction in the surrounding area.
On the west side of the beach you find Bolonia's dune, declared natural monument in the year 2001 and of great ecological importance. The dune system of Bolonia is extremely mobile and this prevents anything to grow there except for ammophila arenaria. This a plant adapted to be burried in the sand and supports in the dunes existense. More inwards there are small groups of pines. The continued movement of the dune causes the death of these pines by burrying them, but since this is a natural process current conservation policies are not to prrevent this.
The roman ruin of Baelo Claudia
As an additional and interesting fact, next to the beach there are ruins of the ancient roman city of Baelo Claudia, founded in the 2nd century AC. It was an "industrial city" dedicated mainly to the fishing and elaboration of tuna for its distribution throughout the Roman Empire. The ruins were excavated in the seventies and are excellently conserved.
It is from here, where the Moors, five centuries after the Romans, in 711 undertook their invasions of the Iberian peninsula for it's closeness to the african continent.