Easter Island is the world's most isolated inhabited island. It is also one of the most mysterious. Eastern Island is roughly midway between Chile and Tahiti. The triangular shaped island (Easter Island) is made mostly of volcanic rock. Small coral formations exist along the shoreline, but the lack of a coral reef has allowed the sea to cut cliffs around much of the island. The coastline has many lava tubes and volcanic caves. The only sandy beaches are on the Northeast coast. The inhabitants of this charming and mysterious place called their land: Te Pito o then, 'the navel of the world.' It sits in the South Pacific Ocean 2,300 miles west of South America, 2,500 miles southeast of Tahiti, 4,300 miles south of Hawaii, 3,700 miles north of Antarctica. The closest other inhabited island is 1,260 miles away — tiny Pitcairn Island where the mutineers of the H.M.S. Bounty settled in 1790.