 The remoteness of the islands - originally accessible only by boat - made them a hideout for outlaws and criminals from Buenos Aires and Montevideo.The marxist Liborio Justo lived there in the 1940s, the harsh environment and the fugitives who inhabited it, inspired his book of short stories, entitled "Rio Abajo" ("Down the River"), which was later made into a movie with the same title.Nowadays tourism is one of the main activities of the islands, where typical Delta wildlife such as the Neotropic cormorant, capybara and marsh deer can be seen.