The author, Robert Long, has paddled on many rivers and on many types of canoes. He has had experiences in rainforests. The book “Alaska,” which is referred to in the preface, was written by Robert...view moreThe author, Robert Long, has paddled on many rivers and on many types of canoes. He has had experiences in rainforests. The book “Alaska,” which is referred to in the preface, was written by Robert. Rick and other primary characters from “Alaska” are again the primary characters in “Danger on the Amazon.”view less