Truk Lagoon, located in the Federated States of Micronesia, is a large, sheltered body of water known for its rich marine biodiversity and historical significance. It is famous for being the site of the World War II naval battle, where numerous ships and aircraft were sunk, creating one of the world's best wreck diving destinations. The lagoon is home to over 60 shipwrecks, including Japanese warships and cargo vessels, making it a popular spot for divers and underwater explorers. The wrecks are often covered in vibrant coral and marine life, providing a unique glimpse into history while supporting ecological diversity in the region.