- POHNPEI FEDERATED STATES OF MICRONESIA This is the largest island in the Eastern Caroline group and the capital of the Federated States of Micronesia (FSM). It fits the typical South Sea island image with its lush vegetation and abundant rainfall washing into streams, rivers and tumbling waterfalls. Unlike other Micronesian islands it has tropical jungles, mist covered mountains, mangrove swamps ...www.janeresture.com/fedmic/pohnpei.htm