Amazonas, located in Brazil has something to brag about. It is where you will find the Anavilhanas Archipelago, which is the biggest and largest fresh water archipelago in the world. The Anavilhanas Archipelago is found on the Rio Negro, 70 kilo meters upstream from Manaus where the Rio Solimoes & Rio Negro join as one river. At its widest, the river is measured to 27 kilo meters wide. Like most archipelagos, the number of islands in the Anavilhanas Archipelago differ. The average islands number at 400 spread over 90 km, although during rainy seasons which are mostly from the months of November to April, most of the islands are under water.
The islands are not barren, they are home to countless vegetation and all sorts of animals like exotic birds and butterflies, iguanas and monkeys. When the water rises, animals from low lying grounds seek higher grounds. When the water does recede, it exposes untouched beaches and intact ecosystems.
The Anavilhanas Archipelago was formed through the buildup of sediments and debris from the erosion of the Guyana Hills. This along with the sediments carried by the Rio Negro formed the different and diverse systems of the Anavilhanas Archipelago. It will surely be an adventure to discover the many islands of the archipelago and to see firsthand what secrets they hold. What is even more inviting is the location of the archipelago itself, it is near the Jau National Park, which is considered the largest forest reserve in South America.