Alana T. suggests: Quest in Paradise and Quest Under Capricorn, by David Attenborough, each about 3 hours long. Listen to one of the world's best naturalists as he describes his travels through New Guinea and Australia. He is well known for his TV miniseries (e.g. Life of Birds, Planet Earth, Frozen Planet, etc.). Versions released in the U.S. utilize American narrators (losing much character!), but these audiobooks retain the author's own remarkable, passionate voice.