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.

We did this tour on our trip and overall enjoyed it. There are definitely a lot of stairs and it is…read morequite the workout unless you are coming by boat. There is also no parking at the entrance, so you'll need to park in a dirt parking lot a few miles away and buy a roundtrip shuttle ticket. The shuttle had AC ;) which i barely noticed on the way to the cave, but definitely noticed on the ride back after all those stairs! The cave was interesting with both beautiful rock formations, colors, and a subterranean lake. The tour was interesting but hard to hear and it went very slowly, forcing us to just herd through like cattle, which we didn't love.. but the site itself is quite beautiful.