The Federated States of Micronesia is a country spread across the western Pacific Ocean comprising more than 600 islands. Micronesia is made up of 4 island states: Pohnpei, Kosrae, Chuuk and Yap. The country is known for palm-shaded beaches, wreck-filled dives and ancient ruins, including Nan Madol, sunken basalt temples and burial vaults that extend out of a lagoon on Pohnpei.