it is the smallest of the four islets of Kayangel Atoll. Ngaruangel Reef Ngaruangel (Ngaruangl) Reef, located at , is an incipient atoll, northwest of Kayangel atoll, and separated from it by Ngaruangl Passage, a very deep ( at from each atoll) and wide passage. The atoll is long north–south, and from wide in the north to in the south, and about on the average. The total area including the lagoon is . The lagoon is shallow, with an average depth of , has about 115 pinnacle and patch reefs, and a boat passage through the northeastern part of the barrier reef. The lagoon floor is covered with thick sand deposits and thickets of staghorn Acropora. The reef is protected by Ngaruangel Reserve. Ngaruangel Island There is one small, barren and uninhabited islet, Ngaruangel Island, in the center of the eastern rim of the atoll, at its easternmost point. Ngaruangel Island is long north–south, and from wide in the south to in the north. There is a sand spit attached to the island, pointing southwest into the lagoon, long and wide. The total area of the island is . The islet consists almost entirely of pieces of rough coral rock thrown up by surf. Most of the pieces are rough or sharp and are largely of the Acropora reticulata type, or of similar form. Sand and sandy gravel are limited to the lagoon side and the southern tip. The altitude is a little less than one meter above high tide. There is no vegetation on the islet. Animal life is represented by numerous marine crane flies. Terns are abundant. Velasco Reef Velasco Reef, located at is a sunken atoll north of Ngaruangl Reef, rising steeply from the surrounding seafloor, deep. It is not clearly separated from Ngaruangl Reef and appears as its large but submerged northern extension on satellite images. It extends more than to the north, and is up to wide, giving it an oval shape, covering an area of about . Much of the reef is uncharted. The central depression (lagoon) is deep, while depths along the rim (outer edges) range from (generally ), on which there are overfalls when the tidal currents are strong. Heavy wave exposure limits coral diversity and cover on Velasco Reef. Education The Ministry of Education operates public schools. JFK Kayangel Elementary School was built in 1965; initially students took classes in a