Italian auxiliary ship Olterra

The Port of Algeciras is the port and harbour of Algeciras, a city located in the province of Cádiz in the autonomous community of Andalusia, Spain. It is a commercial, fishing and passenger port. Primarily a transshipment port, its position near the Strait of Gibraltar and key east–west shipping routes establishes it as one of the busiest transshipment hubs in the world. It competes with Tanger-Med for the local transshipment market. It consists of numerous maritime infrastructures scattered throughout the Bay of Gibraltar. Although only the town of Algeciras and La Línea de la Concepción overlook the bay, there are port facilities in the rest of the bank, also belonging to the municipalities of San Roque and Los Barrios. It is managed along the port of Tarifa by the Port Authority of Algeciras Bay.

Playa del Barranco is a beach in the municipality of Algeciras, southeastern Spain. It overlooks the Bay of Algeciras. It is approximately 500 metres in length. To the north is the Playa de El Rinconcillo.

The First Battle of Algeciras was a naval battle fought on 6 July 1801 (17 messidor an IX of the French Republican Calendar) between a squadron of British Royal Navy ships of the line and a smaller French Navy squadron at anchor in the fortified Spanish port of Algeciras in the Strait of Gibraltar. The British outnumbered their opponents, but the French position was protected by Spanish gun batteries and the complicated shoals that obscured the entrance to Algeciras Bay. The French squadron, under Contre-Amiral Charles Linois, had stopped at Algeciras en route to the major Spanish naval base at Cadiz, where they were to form a combined French and Spanish fleet for operations against Britain and its allies in the French Revolutionary Wars. The British, under Rear-Admiral Sir James Saumarez, sought to eliminate the French squadron before it could reach Cadiz and form a force powerful enough to overwhelm Saumarez and launch attacks against British forces in the Mediterranean Sea. Sailing directly from his blockade station off Cadiz, Saumarez's squadron consisted of six ships of the line, twice the number under Linois's command. Discovering the French at anchor in Algeciras on the morning of 6 July, Saumarez launched an immediate attack on the anchorage through the complicated shoals of Algeciras Bay. Although the initial attack caused severe damage to the French ships, light winds and shallow water led to the British ship HMS Hannibal grounding under heavy fire while the French vessels were driven on shore to prevent their capture. With his intentions frustrated, Saumarez ordered his squadron to withdraw, five of his ships limping out of the bay while the battered Hannibal remained trapped. Isolated and unable to manoeuvre, Captain Solomon Ferris on Hannibal endured the enemy fire for another half an hour before surrendering his ship. Both sides had suffered severe damage and casualties, but both were also aware that the battle would inevitably be rejoined and so the aftermath of the British defeat was one of frenzied activity at Gibraltar, Algeciras and Cadiz. While the British and French squadrons conducted hasty repairs, the French and Spanish fleet at Cadiz was prepared for a rescue mission, a heavy squadron arriving at Algeciras on 12 July. As the Spanish squadron departed with Linois's ships, they were attacked again by Saumarez's squadron at the Second Battle of Algeciras and caught at night by faster and more manoeuvrable ships, which resulted in the British inflicting heavy losses on the Spanish rearguard but failing for a second time to destroy the French squadron.

The Second Battle of Algeciras (also known as the Battle of the Gut of Gibraltar) was a naval battle fought on the night of 12 July 1801 (23 messidor an IX of the French Republican Calendar) between a squadron of British Royal Navy ships of the line and a larger squadron of ships from the Spanish Navy and French Navy in the Gut of Gibraltar. The battle followed the First Battle of Algeciras on 6 July, in which a French squadron anchored at the Spanish port of Algeciras was attacked by a larger British squadron based at nearby Gibraltar. In a heavy engagement fought in calm weather in the close confines of Algeciras Bay, the British force had been becalmed and battered, suffering heavy casualties and losing the 74-gun ship HMS Hannibal. Retiring for repairs, both sides called up reinforcements, the French receiving support first, from the Spanish fleet based at Cadiz, which sent six ships of the line to escort the French squadron to safety. Arriving at Algeciras on 9 July, the combined squadron was ready to sail again on 12 July, departing Algeciras to the westwards during the evening. The British squadron under Rear-Admiral Sir James Saumarez, having effected its own hasty repairs, set off in pursuit. Finding that his ships were falling behind, Saumarez instructed his captains to separate and attack the combined squadron as best they were able to. The fastest ship was HMS Superb under Captain Richard Goodwin Keats, which sailed through the Spanish rearguard as a moonless night fell. Superb fired on the rearmost ships, setting the 112-gun Real Carlos on fire and capturing the Saint Antoine. Unable to determine friend from foe in the darkness, Real Carlos inadvertently engaged the Spanish ship San Hermenegildo, spreading the fire to its compatriot. Both ships subsequently exploded with enormous loss of life. A second stage of the battle then developed, as HMS Venerable took the lead of the British line, attacking the rearmost French ship Formidable under Captain Amable Troude. In a furious and protracted engagement, Venerable suffered heavy damage and was driven ashore, allowing the remainder of the French force to return to Cadiz without further fighting. After the battle, Venerable was towed back to Gibraltar for repairs, while the rest of the British squadron resumed the blockade of the French and Spanish ships in Cadiz, returning the situation to that before the battle. This British victory, coming so soon after Saumarez's defeat in Algeciras harbour, did much to restore parity in the region and the heavy casualties inflicted on the Spanish contributed to a weakening of the Franco-Spanish alliance and the signing of Treaty of Amiens, which brought the war to a temporary halt early the following year. In France, despite the heavy Spanish losses, the battle was celebrated as a victory, with Troude widely praised and promoted for the defence of his ship.

Paseo Cornisa is a park in Algeciras, Spain. It was inaugurated in May 2007. It stretches for just over a kilometre between Punta del Cementerio and Punta del Almirante in the north of the city near the old cemetery and parallel to the Playa del Barranco and Playa de El Rinconcillo. The park has an area of over 20,000 square metres (220,000 sq ft). Within the park is the Torre del Almirante or Admiral's Tower which dates from the 14th century. In the eighteenth century La Almiranta Battery was near the tower and its role was to defend the city of Algeciras. It worked with the other coastal batteries to defend the area during the Battle of Algeciras in 1801. This battery was partially destroyed by a magazine explosion in the nineteenth century which also damaged the tower. During the Spanish Civil War the battery was used as a place for machine guns. Nearby was an area that was used by firing squads.

Playa de Los Ladrillos is a beach in the municipality of Algeciras, southeastern Spain. It overlooks the Bay of Algeciras, next to Playa del Barranco. It is about 200 metres in length.

Torre del Almirante (English: Tower of the admiral) is a tower located in Algeciras, Spain. It was declared Bien de Interés Cultural in 1985.The date of this tower is unknown and it pre-dates many other towers that were built around the Bay of Gibraltar and south of Algeciras as batteries and watchtowers. This tower was used by the Admiral Egidio Boccanegra in the 14th century during the Siege of Algeciras (1342-1344). The tower appears on a map of 1608 and it was improved after 1704 following the Capture of Gibraltar when the enclave was seen as a potential beachhead for British forces. The tower was put to good use during the Battle of Algeciras in 1801. The tower was then the base for four 24-pounder guns which guarded the northern approach to Algeciras. The tower was used for machine guns during the 20th century. The ruins are now integrated into the park known as Paseo Cornisa.

The Algeciras Heliport (Spanish: Helipuerto de Algeciras) is a public heliport in Algeciras (Cádiz, Spain). It was inaugurated on July 1, 2010, by the Minister of Development, José Blanco. It was the second helipad of the network AENA after Ceuta Heliport. Construction had started in February 2009. It provides transport to Ceuta and other areas in the Campo de Gibraltar. The only airport existing in the area is the one in the neighbouring British Overseas Territory of Gibraltar.It was expected to begin operation in July 2010. The heliport is located on the current parking building of the Port of Algeciras. The setup of the heliport has involved the extension of an existing building and the ground keeping an area of 32 x 24 meters to take off the vehicle and a safe area of 8 x 5 meters. It is supplemented by the service units for rescue and firefighting and various units of maintenance. The helicopter used in the city will be a model Bell 412 EP that will allow communication with the city of Ceuta in just 10 minutes.The heliport platform is 2,400 m2 and a height of 30 meters above sea level. The passenger terminal is located in the Passenger Terminal Building.

The Marinid Walls of Algeciras (Spanish: Parque Arqueológico de las Murallas Meriníes de Algeciras) are city walls located in Algeciras, Spain. The walls were declared Bien de Interés Cultural in 1985.The dating of the walls is complicated. They were originally attributed to the Marinid period in the late 13th century, but recent epigraphic evidence published in 2012 has updated scholarly analysis, which now suggests that the archeological remains include pre-1342 Islamic constructions of uncertain date over which major reconstruction and remodeling was undertaken by the Castilians, approximately between the years 1344 and 1350, after their conquest of the city. The reconstruction was necessitated by the damage the walls suffered during the Castilian siege. When the Nasrids of Granada conquered the city in 1369, they demolished the walls and covered up the Castilian inscriptions that recorded their occupation of the city.The remains also include a gate known as the Puerta de Gibraltar (Gibraltar Gate) or Puerta del Fonsario (Fonsario Gate). When the Castilian masons rebuilt the gate, it appears they largely followed their Islamic-era outline, building square towers typical of that style. A bridge giving access to the gate over the moat is also decorated along its sides with interlacing brickwork circles, which resemble a Mudéjar pattern also seen in the Courtyard of the Maidens in the Mudéjar section of the Alcázar of Seville (14th century).

Parque María Cristina is a park in Algeciras, southeastern Spain. It is bordered by Calle de Ramón y Cajal to the north, Calle Capitán Ontañón to the east, Avenida de Blas Infante to the south, and Avenida de las Fuerzas Armadas to the east. It is one of the oldest parks in the city, established in 1834. It covers an area of 20,683 m².

Pabellón Ciudad de Algeciras-Doctor Juan Carlos Mateo is an arena in Algeciras, Spain. It is primarily used for team handball and is the home arena of Algeciras BM. The arena holds 2,300 people. Initially named as only Ciudad de Algeciras, on 10 May 2017, the pavilion changed its denomination by adding the name of Doctor Juan Carlos Mateo.

Playa de El Rinconcillo is a beach in the Province of Cadiz, Andalusia, Spain, located to the north of the city of Algeciras, near the neighborhood of El Rinconcillo. It looks across to the rock of Gibraltar and La Línea de la Concepción. It extends from the Puente de Acceso Norte access to the mouth of the Rio Palmones, a total length of 2550 metres and an average width of 40 metres including Rinconcillo beach itself and a small cove called La Concha. The beach has two distinct areas, the first is southern part of the beach, surrounded by the suburb of El Rinconcillo and several bars and restaurants, and is characterized by shallow water, making it ideal for swimming. The second area, which is completely undeveloped, is nearest to the river mouth. It is surrounded by the river marshes and the Palmones dunes. This area is steeper and has deeper water than in the first section of the beach. The estuary here attracts numerous birds.