The Neptune Caves in Alghero
The Cave of Neptune or Grotte di Nettuno is located at the tip of Capo Caccia headland. An imposing limestone cliff of no less than 204 meters high, about 25 kilometers from the city of Alghero. The Neptune Caves are one of the most visited sights in Alghero. During the boat excursion or during the walking tour you will enjoy beautiful views, so don't forget your camera!
Boat trip from Alghero to the Grotte di Nettuno
The boat trip to the Grotte di Nettuno leaves from the tourist port of Alghero. You can arrange the boat trip directly on site, the excursion including a tour of the cave takes three hours. During high waves boat trips are not available. The nice thing about this tour is that you can sail along the coastline of Alghero and the imposing cliffs of Capo Caccia for about 45 minutes and enjoy beautiful views. This is also a great option with (small) children!
Visit the Neptune Grotto by land
The caves of Neptune can also be reached by car and partly on foot. Via a panoramic coastal route from Alghero you will arrive at the parking near the lighthouse in Capo Caccia. Via a "goat staircase" - also known as the Escala del Cabirol - you descend to the Neptunes cave. The staircase is completely carved out of the rock and after a route of no less than 655 steps you arrive at the entrance of the cave. The view of the bay along the way is beautiful. Make sure you bring enough water with you because it is quite a challenge, especially at high temperatures! Entrance tickets are available directly at the entrance of the cave.
Spectacular and still largely unknown: Green Grotto (Grotta Verde)
Our insider tip: Right next to the famous Neptune’s Grotto, the spectacular Grotta Verde at Capo Caccia reopened to visitors in 2025 after being closed for almost 20 years. The cave is considered one of the region’s most fascinating yet still little-known natural landmarks. Huge stalagmites and stalactites rise up to twelve metres high from the rock formations – all around 60 metres above sea level, with breathtaking views over the dramatic cliffs of Capo Caccia. Particularly fascinating: Grotta Verde is not only geologically important, but also archaeologically significant, as traces of human settlement from the Neolithic period were discovered here. Visits are only possible with guided tours with limited participant numbers. The cave is usually open from Easter until October. Reservations and shuttle bus service via www.algheroparks.it.
Would you also like to visit the Caves of Neptunes and are you looking for a nice accommodation in Alghero or maybe you prefer a Sardinia round trip ? Tell me about your holiday wishes ; I'll be happy to show you the way to the most beautiful places in Alghero.
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