Florence, Italy, is a common port stop on Northern Mediterranean cruises. Cruise ships typically stop in Florence for one or two days, allowing guests time to explore the sites. The town holds a range of piazzas, including the Piazza del Duomo, situated close to the Duomo cathedral. Sculptures are common throughout the city -- including in the Piazza della Signoria. From Florence, many tours offer a day of afternoon trip to Pisa, to see the leaning tower of Pisa and associated markets, as well as the Campo dei Miracoli.
Situated on the shore of Greece, Rhodes offers a range of historical and cultural sites. Cruise ship packages typically include a tour of the city and Lindos, a nearby island where you can relax on the beach before returning to your ship. Tours are usually half a day or a full daylong and encompass the city's famous sites such as the old town and the Jewish quarter as well as the valley of butterflies. Available forms of transportation include a water taxi, donkey and a Mercedes Benz. There is no obligation to take part in a pre-arranged tour -- if you want more flexibility, you can explore the city yourself on foot or hire a driver.
Olbia is not standard destination. This island stop features high-quality beaches. Cruise ships typically offer a shuttle to the main part of the island, or you can pick up a taxi for approximately $30 each way. Ask your driver to give you a tour of the island and then relax on La Cinta beach, building sand castles and playing in the sea. The sea is relatively calm and clean, and suitable for children. You can buy a range of snack food, including prosciutto sandwiches and mozzarella salad from vendors on the beach.