Also many animals have become rare. Many birds are gone, for example the frigate. There were many terns also. The people want them to turn back to the island. To save the island men have to remove the pinnacles of coral everywhere.
Men wants to prepare the island for new trees, plants and animals.
Calculated is that it is going to take twenty years to restorate the island. Nauru has not got a natural harbour, but the water around Nauru is very deep. Big tankers can easily anchor to load the phosphates into the ship. A special system is made from conveyors and cantilevers. Nauru was first inhabited by seafaring Polynesian and Melanesian explorers.