Different, but a fun read.
Adventure, but I thought the sailing adventure more interesting than the "other" adventure.
If you are looking for realism, it is not here. If you are looking for humor, there is some here. If you like a story about people who grow to love each other in spite of whatever happens, Yes. An interesting relationship develops along the way.
A wild story, not plausible; with characters who I found interesting.
This is NOT history. It's tongue in cheek humor, poking fun at a lot of things most of us will understand and enjoy.