Aquarium Cap Blanc, Marine conservation center in Sant Antoni de Portmany, Spain.
Aquarium Cap Blanc is a natural cave with an underground freshwater lake located along the coast of Sant Antoni de Portmany on Ibiza. The water fills a limestone basin where Mediterranean fish species live in their original habitat surrounded by rock walls.
The cave formed through natural geological processes over millions of years as a limestone formation. Local fishermen once used it as a storage place for their daily catch before it was later converted into a conservation facility.
The name refers to a white limestone cliff that defines this stretch of coastline. Today, visitors can observe how water fills the natural chamber, creating a living space where fish move freely in their everyday surroundings.
The location can be reached on foot along the coastal path or by boat from Sant Antoni harbor. Visitors should know that the cave maintains steady conditions year-round, so simple clothing works well for a visit.
The center focuses on treating sea turtles that are found injured along Ibiza's shoreline. After they recover, the animals are returned to the Mediterranean Sea.
Location: Sant Antoni de Portmany
Address: Ctra. de Cala Gració, s/n, 07820 Sant Antoni de Portmany, Illes Balears, Spain
Opening Hours: Monday-Sunday 10:00-16:30
Phone: +34663945475
Website: http://aquariumcapblanc.com
GPS coordinates: 38.98926,1.28941
Latest update: December 6, 2025 17:46
Ibiza showcases a Mediterranean heritage that extends far beyond its reputation for partying. The island features Dalt Vila, a fortified medieval quarter from the 16th century, listed as a UNESCO World Heritage site, with a Gothic cathedral and a castle overlooking the port. The coastline alternates between protected coves like Cala Saladeta, nestled among limestone rocks and pine forests, and larger beaches such as Cala Tarida, stretching over 900 meters. Offshore, the islet of Es Vedra rises from the sea at an elevation of 1,253 feet (382 meters), creating a nature reserve home to falcons and wild goats. The shoreline reveals preserved bays with Mediterranean pines descending to white sand. Cala Comte includes three distinct coves framed by rocky formations, while Cala Bassa provides easy access via parking and seaside amenities. The Punta Arabí market, established in 1973, has brought together local artisans and creators for half a century, offering textiles, jewelry, and decorative objects. An island that combines history, nature, and local life away from nightlife scenes.
Café del Mar
1.1 km
Cala Bassa
4.9 km
Cala Comte
6.7 km
Cala Tarida
7.2 km
Cala Salada
2.4 km
Platja Port d’es Torrent
3.1 km
Ses Balandres
7.4 km
Torre de Compte
5.4 km
Capella subterrània de Santa Agnès
1.7 km
Illots de Ponent d'Eivissa
8.5 km
Playa de San Antonio de Portmany
2 km
Far de Sa Conillera
6.8 km
Can Jeroni
7.5 km
Església de Sant Antoni de Portmany
1.6 km
Església de Sant Agustí des Vedrà
5.4 km
Església de Santa Agnès de Corona
6.8 km
Far de ses Coves Blanques
1.3 km
Església de Sant Josep de sa Talaia
7.5 km
Cala Conta Beach
6.3 km
Conjunto de San Antonio de Portmany
1.6 km
Torre de Can Curt
5.3 km
Ibiza Biotechnological Botanical Park
3.5 km
Torre Artillada
1.6 km
Churches of Sant Josep de sa Talaia
7.5 km
Caló d'Es Serral
7.2 km
Cala Saladeta
2.4 km
Caló des Moro
260 m
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