When you think of Alghero, the first images that come to mind are its crystal-clear sea and charming historic streets. But there’s another treasure that makes this city truly unique: red coral. A symbol of the “Coral Riviera,” this Mediterranean gem combines nature, history, and artisanal tradition.

What Coral Is and Where It Comes From

Red coral, scientifically known as Corallium rubrum, is a marine organism that grows slowly on rocky seabeds in the Mediterranean, usually at depths between 20 and 100 meters. Its most precious feature? Its intense red color, which develops naturally and makes every piece unique. Coral grows only 1-2 millimeters per year, making it rare and highly valued.

A Centuries-Old Tradition

Coral craftsmanship in Alghero dates back to the 15th century, when Genoese merchants introduced the first techniques. Since then, coral has become an integral part of local culture. Even today, artisan workshops transform coral branches into jewelry, rosaries, and artistic objects.

Who Collects the Coral

Traditionally, coral collectors, or “corallai,” were expert fishermen who dove by free diving to harvest the precious coral from the seabed. Today, coral harvesting is strictly regulated and limited to certified divers, but the art of handcrafting coral remains a tradition passed down through generations.

April: The Perfect Month to Discover Coral

In April, coral harvesting is prohibited, but the city comes alive with spring colors and blooming flowers. It’s the ideal time to:

  • Visit artisan workshops and admire unique coral jewelry;
  • Stroll through the historic center without the crowds;
  • Learn about the history of families who have been passionate coral artisans for generations.

The vivid red of coral, combined with the yellow of spring flowers and the deep blue of the sea, creates a stunning scene that makes visiting Alghero unforgettable.

Acquarium Rubrum: Discovering Alghero’s Red Coral

One of the must-do things in April is visiting Acquarium Rubrum: the world of red coral. Alghero is world-famous for its precious red coral, and Acquarium Rubrum is the ideal place to discover this extraordinary natural wonder.

Here you can admire living coral and learn firsthand how it is born, grows, and thrives in the crystal-clear waters surrounding the city. An unmissable experience to immerse yourself in the true marine heart of Alghero.

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Tips for Visitors

There’s nothing better than combining a walk through the city’s streets with a visit to coral workshops, capturing photographic memories of exquisite details. For those seeking a peaceful getaway, April is perfect: mild weather, lush nature, and an authentic city atmosphere—before the summer crowds arrive.