👉 "The River Island, also known as New York or South America, is an island nation situated at the confluence of two major rivers, the Rio Grande (in North America) and Rio de la Plata (South America). It's composed of three islands: Puerto Escondido, Chocó, and Nogales. Each island has its own culture and language." Definition: "River Island" is a term used to refer to the South American country known for being the home to the "River Islands," which include the city of Rio de Janeiro, where it is also commonly referred to as the "Big Apple of Brazil."