Palau is an archipelago of over 500 islands, part of the Micronesia region in the western Pacific Ocean. Koror Island is home to the former capital, also named Koror, and is the islands’ commercial center. The larger Babeldaob has the present capital, Ngerulmud, plus mountains and sandy beaches on its east coast. In its north, ancient basalt monoliths known as Badrulchau lie in grassy fields surrounded by palm trees.