Aquarium Cap Blanc is a small marine aquarium inside a natural sea cave near Cala Gració in Sant Antoni de Portmany. A walkway lets you look into the water, where local species include rays, groupers, lobsters and baby sharks. The cave was once used to keep lobsters, and it now also helps care for injured sea turtles before their return to the wild. Families can make a short visit of it, then stop at the entrance bar for coffee, tapas or a drink with a view across the bay.
A cave once used for lobsters
The cave is also known as the Lobster Cave. It was used as a nursery for lobsters, which were later sent to mainland Spain. Today, the natural setting holds marine life native to Ibiza and the Balearic Islands.
Rather than a row of standard tanks, the main display uses the cave’s seawater pools. A wooden walkway crosses above the water, giving you a view down into the habitat. Smaller tanks show additional marine animals.
Local marine life and turtle care
The aquarium’s collection includes rays, groupers, sea bream, rockfish, moray eels, conger eels, lobsters, sea sponges and starfish. You may also see baby sharks. The species on display give a close look at the kinds of marine life found around Ibiza.
Aquarium Cap Blanc is also connected to the recovery of injured sea turtles. The cave’s water conditions and natural environment are used to care for turtles as they recover before being released into local waters. This conservation work is part of the site’s role alongside its aquarium displays.
A small visit beside the bay
The aquarium is close to Cala Gració in Sant Antoni de Portmany. Its compact size means you can see the exhibits in a short visit. The low cave ceiling can feel warm on hot days, so plan accordingly.
A bar and café sit at the entrance, above the water, with views over the Bay of Sant Antoni. Food mentioned at the café includes sardines and salad, as well as tapas and pizza. The sardines and salad are served as a set offering on some days, so check ahead and reserve if you intend to eat there. Coffee, including decaffeinated coffee, and drinks are also available.
FAQ
Where is Aquarium Cap Blanc?
It is near Cala Gració in Sant Antoni de Portmany, Ibiza.
How long does a visit take?
The aquarium is small. Plan on about 15 to 45 minutes to look around.
What marine animals can you see?
The displays include local species such as rays, groupers, lobsters, sea sponges and baby sharks.
Can you eat at Aquarium Cap Blanc?
There is a café and bar at the entrance. Sardines, salad, tapas and pizza are among the food options mentioned; reserve ahead if you plan to dine.
