1) Island of Yap 
Piagailoe Atoll is an uninhabited atoll in the State of Yap in the Federated States of Micronesia, geographically part of the Caroline Islands. It is located 71 kilometers northeast of Lamotrek, 71 kilometers northwest of Satawal and 945 kilometers southeast of Yap island.This atoll lies at the western end of a chain of submarine mountains that ex...