This is one of the strangest stories I have read in a long time. The Amazon River is one of the largest and most treacherous rivers in the world. It’s also stuffed with things that want to eat you if you do get into the water.
If I were an evil genius, this is totally where I would store my plans for world domination. When James Bond came by to foil my plans I could say cool things like “No Mr. Bond, I expect you to collate data.”