Grotta di Nettuno - Visiting Neptune's Cave was the absolute highlight of our stay in Sardinia. The…read morecave is fascinating, with its chambers, spectacular stalactites, and underground lake. The entire site feels majestic and leaves a lasting impression. The organization of the visit was good, and the tour itself was very interesting. It is a unique natural attraction that I would recommend to every visitor to Alghero.Inside the cave, nobody checked the specific time on our tickets, so there is no need to worry if you arrive slightly earlier or later. They mainly check according to the boat arrival, as very few visitors seem to reach the cave on foot.