This is nowhere near done. I edit and add and erase as I go along. However, you can at least see, in general, where the action is taking place.
My newest addition is the hole in the top left of the map, which I’ve based off this amazing image from Belize. (Thar be critters lurking down thar!)
More novel to follow in a day or two. I’m adding the final parts to Chapter Five this weekend.