The Portuguese explorers in the early 16th century, who navigated up to the Brazilian coastline kept a record of their discoveries, as well as the days of the year, by designating the former for the latter. It was in 1502, on the New Year's Day, that some of these explorers sailed in the direction of a narrow opening in the coastline that was enclosed by spectacularly formed mountains. Ahead of this opening, was a body of water that stretched 20 miles inland, made them convince that they had reached upon a the mouth of a big river, and so named the area as ‘River of the First of January’.
However, the big waterway was not a river but an island-studded bay that named as Guanabara that meant ‘arm of the sea’ by the natives. Supertankers as well as yachts sail across the wonderful balloon-shaped harbor of Guanabara Bay. This harbor is referred to as Harbor of Rio de Janeiro.
The region around this site has teeming tropical wildlife inclusive of jaguars and tapirs. In fact, the western shores of the bay have flourished metropolitan area that is referred to as Rio de Janeiro or the River of January. The splendid environs surrounding the harbor of Rio de Janeiro are delight to view especially for nature lovers.