of only , called Ulach. Coral diversity and abundance are low in the lagoon. Large fish, dolphins and foraging sea turtles are common near the pass. There are four densely wooded islets on the eastern and southern rim of the oval-shaped atoll, from north to south, are Kayangel, Ngeriungs, Ngerebelas and Orak. Kayangel Islet Kayangel Islet (also called Ngcheangel or Ngajangel), is the largest and only inhabited islet of Kayangel Atoll and Kayangel State. It is long north–south, with a width between in the south and in the north. The land area is about . There are five villages primarily oriented to the western shore (lagoon side). They stretch over from north to south and are not clearly separated from each other. The villages are very small by any standard, given the aggregate population of only 138. Together, they make up the state capital, Kayangel (Ngcheangel). From north to south: Orukei Dilong Doko (with long pier to the west into the lagoon) Olkang Dimes The only power on the island comes from solar panels or personal generators. There is one small school that goes from K-9th grades and a small library. The only shopping to be done on the island is from a small general store, otherwise it is what the islanders catch in the ocean or grow in the ground. There are several ways to get to the island. One is the island's speedboat that takes about two hours, but it is generally in for repairs. The more reliable modes are from either a local fisherman or a dive company that makes regular trips up to the island to dive off the reefs surrounding the island. Ngeriungs Islet Ngeriungs Islet, about south of Kayangel Islet, is long north–south, and has a width between in the south and in the north, which amounts to a land area of . There is a small campsite. The islet has been designated an Important Bird Area (IBA) by BirdLife International because it supports a large population of Micronesian megapodes. Ngerebelas Islet Ngerebelas Islet, close to the southern tip of Kayangel atoll, about southwest of the southwestern tip of Ngeriungs Islet, has a size of east-west by north-south, with a land area of . Orak Islet Orak Islet, at the southern tip of Kayangel atoll, about southwest of the southwestern end of Ngerebelas Islet, is long southwest–northeast, and wide. With an area of ,