Discover how to visit Asinara Island from Alghero: pristine beaches, trekking, boat trips, electric bikes, and guided tours in the National Park.

How to Visit Asinara Island from Alghero

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Asinara Island, one of Northern Sardinia’s paradises, is a place of wild, untouched nature, surrounded by crystal-clear waters in every shade of turquoise. Its mountainous, jagged coasts hide beautiful beaches, perfect for relaxing and recharging.

The terrain is mostly hilly with high, rugged coasts covered by typical Mediterranean scrub. In contrast, some coves offer white sand and transparent waters, ideal for visitors seeking authentic, secluded spots.

The island can only be reached by boat and can be explored through organized tours or independently.

Brief History of Asinara

Asinara has a rich history: from Neolithic settlements to visits by Phoenicians, Greeks, and Romans, followed by Byzantine and Genoese dominations.

In 1885, the island became state property and served as a quarantine area, agricultural colony, and prison. During the 20th century, it hosted a high-security prison known as the “Alcatraz of Italy,” closed in 1997, when the island was opened to visitors and the Asinara National Park was established.

Asinara National Park

The National Park covers the entire island (52 km²), preserving wild flora and fauna. The western coast is high and rocky with caves and cliffs, while the eastern coast is lower, dotted with coves.

The best way to access coves unreachable on foot is via boat tour, though independent visits are allowed. Motor vehicles are prohibited, and pets are only allowed in urban areas of Cala d’Oliva and Cala Reale.

Certain areas, marked with an “A,” are fully protected, with no foot access, and yellow buoys mark marine protected zones.

The island has a 25 km paved road from Fornelli to Cala d’Oliva, with dirt roads leading to beaches and abandoned prisons.

Flora and Fauna

The Mediterranean scrub features low shrubs and a few taller trees, with endemic species such as the Asinara sea lavender and spiny cornflower.

The most characteristic animals are the white donkeys, the symbol of the island (around 90 individuals), along with hares, weasels, wild boars, and mouflons.

The Most Beautiful Beaches of Asinara

Accessible Beaches

  • Cala Stagno Lungo – White sand, shallow waters, platform for easy access.
  • Cala dei Detenuti / Sa Murighessa – Transparent waters surrounded by pine trees, perfect for snorkeling.
  • Cala d’Oliva – Small beach surrounded by Mediterranean vegetation.
  • Cala Sabina – 30-minute walk, ideal for swimming and snorkeling.

Inaccessible Beaches

  • Cala Sant’Andrea, Cala Sgombro di Dentro, Cala Trabuccato, Cala d’Arena – Protected areas with swimming and access restrictions to preserve the ecosystem.

How to Visit Asinara

The island can be reached from Stintino (20–30 min) or Porto Torres (1h15) by ferry. Motor vehicles are not allowed, but bicycles are permitted with a supplement.

Organized Tours

  • 4x4 and off-road tours – panoramic tours on dirt roads.
  • Tourist train – full-day guided tour with stops at scenic points and the former Fornelli prison.
  • Boat, catamaran, and sailing tours – day trips with swimming and wildlife observation.

Independent Visits

  • Trekking – seven main trails from 1.5 to 5.5 hours to discover hidden spots.
  • Biking and e-bikes – accessible on many trails.
  • Electric cars – only on the paved road, maximum 4 passengers.

 Main Trekking Trails

  • Granite Trail – 11 km, 3h30, from Fornelli to the granite quarries.
  • Castellaccio Trail – 8 km, 2h30, panoramic route to the ruined fort.
  • Water Trail – 7 km, 1h45, passing salt marshes and freshwater sources.
  • Memory Trail – 5.5 km, 1h30, retracing the island’s history from prehistory to Austro-Hungarian times.
  • White Donkey Trail – 8 km, 2h, leading to the 17th-century Aragonese tower and observation of white donkeys.
  • Holm Oak Trail – 13 km, 4h30, from Cala d’Oliva, passing springs and scenic viewpoints.
  • Lighthouse Trail – 18 km, 5h30, to the lighthouse with 120 m elevation gain.

 Where to Eat on Asinara

  • Locanda del Parco – terrace with beach view at Cala d’Oliva.
  • Ristorante L’Asino Bianco – local cuisine.
  • SognAsinara – simple hostel in Cala Reale.
  • Fornelli pier kiosk – snacks and drinks.

How to Reach Asinara from Alghero

  • Car – 54 km to Stintino, then ferry to Fornelli.
  • Bus – seasonal connections, slightly slower.
  • Ferry Stintino → Fornelli: 20–30 min
  • Ferry Porto Torres → Cala Reale: 1h15

Booking and Practical Tips

Book tours, bikes, boats, or excursions in advance, especially in peak season, to enjoy a smooth experience.

Book your stay at B&B Bonsai Alghero now and start dreaming!

FAQ - Frequently Asked Questions about Visiting Asinara

Q: How can I reach Asinara from Alghero?
A: By car or bus to Stintino, then ferry to Fornelli or Porto Torres.

Q: Can I explore Asinara independently?
A: Yes, by trekking, bike, electric car, or private boat, respecting protected areas.

Q: Which beaches are accessible?
A: Cala Stagno Lungo, Cala dei Detenuti, Cala d’Oliva, and Cala Sabina.

Q: Are there guided tours?
A: Yes, by boat, catamaran, sailing, 4x4, or tourist train with park guides.

Q: Where can I eat on Asinara?
A: Locanda del Parco, L’Asino Bianco, SognAsinara, and Fornelli pier kiosk.

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Last Updated

This page on accessibility was last updated on June 25, 2025.