It’s the world’s smallest island nation
The first thing about Nauru you should know is Nauru is the smallest country in the South Pacific Ocean, the third smallest in the world by area, after Vatican City and the Principality of Monaco. Nauru is an oval island with an area of 21 square kilometers. Surrounding the island is a coral reef, exposed at low tide and scattered at high tide. The presence of the reef prevented the establishment of a seaport, but the channels at the reef allowed small ships to access the island. A fertile coastal strip 150 to 300 meters wide inland rises from the beach, where coconuts flourish.
It is also the first country to have no capital in the world. In addition, Nauru is also the smallest republic in the world by area. There really isn’t room for much. Nauru has no protected areas, no World Heritage Sites, no rivers, and just 30km of roads.