Island Near Naples is a term that refers to two islands located in the Tyrrhenian Sea off the coast of Naples, Italy. Ischia is a volcanic island with an area of 46.3 square kilometers and a population of over 60, 000 people. It is known for its thermal springs and its beaches. Capri is a much smaller island with an area of 10.4 square kilometers and a population of just over 13, 000 people. It is known for its rugged landscape, its Blue Grotto, and its luxury resorts.