Cagliari is one of the cities on the island of Sardinia. It is a commercial port on the west side of the peninsula. First and foremost, you must sip a variety of wines during your time exploring this port. Take a day trip to the Cave of Neptune which is one of the most fascinating jewels in the basin. Sail into the sapphire waters and explore the stalagmites and stalactites. Don’t forget to taste the Sardinian pasta.