El Cabezo Gordo has been declared a protected landscape since 1998. It is also a Wildlife Protection Area due to its great biotic, landscape, paleontological and cultural interest. This mountain of 312 meters of altitude is not of volcanic origin, like the other elevations of the Mar Menor, the rocks that form the Cabezo Gordo are of limestone origin, although others of metamorphic type are present as the well-known marble "Stone of el Cabezo". In 1991 the paleoanthropological site "Sima de las Palomas" was discovered, where the remains of animal bones, lithic industry, human bones and teeth of individuals (adults, children and babies) of the extinct species of European fossil man called Neanderthal Man, who lived here approximately 50,000 years ago, have been found. The visit begins by climbing a path to the entrance of the site on the southern slope, at an altitude of 120 metres. This natural viewpoint offers a panoramic view of the Mar Menor with its five islands and all the mountain ranges that close the plain. The transformations in the landscape by man such as the crops and other constructions are analysed. Finally, you will visit the Cueva del Agua, an old mine that was exploited at the end of the 19th century and the beginning of the 20th century. It contains a freshwater lake and is home to 5 different species of bats. It is essential to bring a torch for this visit. Recommendations: suitable footwear, water, sun protection and a cap. You can bring binoculars, compasses and a small magnet to work with the minerals.