Cala Arenas is a beach situated near the city of

Algeciras Algeciras () is a city and a municipalities in Spain, municipality of Spain belonging to the province of Cádiz, Andalusia. Located in the southern end of the Iberian Peninsula, near the Strait of Gibraltar, it is the largest city on the Bay of G ...

Spain Spain, or the Kingdom of Spain, is a country in Southern Europe, Southern and Western Europe with territories in North Africa. Featuring the Punta de Tarifa, southernmost point of continental Europe, it is the largest country in Southern Eur ...

, within the El Estrecho Natural Park. It is located at the southern end of the

Bay of Gibraltar The Bay of Gibraltar (), is a bay at the southern end of the Iberian Peninsula. It is around long by wide, covering an area of some , with a depth of up to in the centre of the bay. It opens to the south into the Strait of Gibraltar and the Med ...

and faces the

Strait of Gibraltar The Strait of Gibraltar is a narrow strait that connects the Atlantic Ocean to the Mediterranean Sea and separates Europe from Africa. The two continents are separated by 7.7 nautical miles (14.2 kilometers, 8.9 miles) at its narrowest point. Fe ...

. It measures about long by about deep. The beach is somewhat difficult to access, but can be reached via coastal paths from Punta Carnero and Punta del Fraile. It consists of a series of three small

cove A cove is a small bay or coastal inlet. They usually have narrow, restricted entrances, are often circular or oval, and are often situated within a larger bay. Small, narrow, sheltered bays, inlets, creek (tidal), creeks, or recesses in a coast ...

s of similar appearance, with beaches of rocks and small stones. Both the terrestrial and marine environment of the area lies within the natural park. Its surroundings are largely undisturbed by human activity; the nearest settlement is the coastal community of Getares, a small outlying development of the city of Algeciras located about 1 km to the north. The beach is framed by cliffs and the

Isla de las Palomas Isla de Las Palomas () is an island opposite the town of Tarifa at the southern end of the Punta de Tarifa at the southernmost point of the Iberian Peninsula and continental Europe. The island has been connected to the mainland by causeway since ...

(Pigeon Island) lies a short distance offshore. Geologically Cala Arenas is located within the Algeciras-Los Nogales unit and is part of the

Baetic System The Baetic System or Betic System () is one of the main systems of mountain ranges in Spain. Located in the southern and eastern Iberian Peninsula, it is also known as the Cordilleras Béticas (Baetic Mountain Ranges) or Baetic Mountains. The n ...

in the

Campo de Gibraltar Campo de Gibraltar () is one of the six ''comarcas'' (county) in the province of Cádiz, Spain, in the southwestern part of the autonomous community of Andalusia, the southernmost part of mainland Europe. It comprises the municipalities of Algec ...

. The local rocks are mainly composed of

flysch Flysch () is a sequence of sedimentary rock layers that progress from deep-water and turbidity flow deposits to shallow-water shales and sandstones. It is deposited when a deep basin forms rapidly on the continental side of a mountain building ep ...

comprising

marl Marl is an earthy material rich in carbonate minerals, Clay minerals, clays, and silt. When Lithification, hardened into rock, this becomes marlstone. It is formed in marine or freshwater environments, often through the activities of algae. M ...

sandstone Sandstone is a Clastic rock#Sedimentary clastic rocks, clastic sedimentary rock composed mainly of grain size, sand-sized (0.0625 to 2 mm) silicate mineral, silicate grains, Cementation (geology), cemented together by another mineral. Sand ...

and

mica Micas ( ) are a group of silicate minerals whose outstanding physical characteristic is that individual mica crystals can easily be split into fragile elastic plates. This characteristic is described as ''perfect basal cleavage''. Mica is co ...

, locally known as the Algeciras Flysch, that dates from the

Eocene The Eocene ( ) is a geological epoch (geology), epoch that lasted from about 56 to 33.9 million years ago (Ma). It is the second epoch of the Paleogene Period (geology), Period in the modern Cenozoic Era (geology), Era. The name ''Eocene'' comes ...

–

Oligocene The Oligocene ( ) is a geologic epoch (geology), epoch of the Paleogene Geologic time scale, Period that extends from about 33.9 million to 23 million years before the present ( to ). As with other older geologic periods, the rock beds that defin ...

period. The rocks include various soft minerals, especially clays, marl,

calcarenite Calcarenite is a type of limestone that is composed predominantly, more than 50 percent, of detrital (transported) sand-size (0.0625 to 2 mm in diameter), Carbonate rock, carbonate grains. The grains consist of sand-size grains of either cor ...

and sandstones, that have eroded to leave behind the harder limestones and thus form the chain of alternate coves at Cala Arenas. Several notable archaeological sites are located near Cala Arenas. The area has been inhabited for thousands of years, the result of its strategic position in the Strait of Gibraltar and the easy landing place that it has represented historically. A small

Phoenicia Phoenicians were an Ancient Semitic-speaking peoples, ancient Semitic group of people who lived in the Phoenician city-states along a coastal strip in the Levant region of the eastern Mediterranean, primarily modern Lebanon and the Syria, Syrian ...

n port existed there, probably with a

watchtower A watchtower or guardtower (also spelt watch tower, guard tower) is a type of military/paramilitary or policiary tower used for guarding an area. Sometimes fortified, and armed with heavy weaponry, especially historically, the structures are ...

. A medieval defensive structure called the Recinto del Cerro de la Horca stood nearby, as did a 16th-century watchtower, the Torre del Fraile. The 18th century Fuerte de San Diego was also situated in the area but was destroyed in 1811 by British troops from

Gibraltar Gibraltar ( , ) is a British Overseas Territories, British Overseas Territory and British overseas cities, city located at the southern tip of the Iberian Peninsula, on the Bay of Gibraltar, near the exit of the Mediterranean Sea into the A ...

, who sought to prevent the French using it during the

Peninsular War The Peninsular War (1808–1814) was fought in the Iberian Peninsula by Kingdom of Portugal, Portugal, Spain and the United Kingdom of Great Britain and Ireland, United Kingdom against the invading and occupying forces of the First French ...

References

{{Algeciras Beaches of Andalusia Landforms of the Province of Cádiz Algeciras