what it is: "Grotte di Nettuno" or Caves of Neptune
How to get there: you can reach these sea caves by boat from Alghero, or alternatively by car. Take the SS 127 towards Capo Caccia from the town. After 24 km, arrived at Capo Caccia, you will find the impressive "Escala del Cabirol", 656 steps lead down to the caves.
Description: the caves of Neptune are visited every year by thousands of tourists, attracted by the salt lake which crosses the caves, the impressive columns formed by the meeting of stalactites and stalagmites, and the amazing rock formations - produced by the action of water on limestone rocks over millions of years.