Gene Wolfe. Somehow resolves or explains every seemingly random occurrence throughout the story, even if the first person narrator is extremely unreliable and doesn’t make the connection
I grew up there in near rain forest area (just slightly short of the technical rainfall requirement). There aren't really any poisonous snakes on the island, just one type that has mildly irritating saliva (I caught and got bit by lots of these as a kid, barely noticed). Depending on which micro-biome you are in, there can be lots of mosquitoes, or not many at all. Where I grew up, there were very few probably because of all the predators (and most of the water was moving not standing). Caught a few tarantulas growing up, never got bit. There were some pretty giant centipedes where I lived but I rarely saw them, never got bit. A few bee stings, but nothing too bad- but wasps... hate those f**ers.
what struck me about Hawaii on my last visits though is the juxtaposition against Puerto Rico (the lost opportunities). Very similar in a lot of ways- but hasn't nearly leveraged the richness of its culture (history, music, cuisine, etc.) as much as Hawaii has.
I also like to point out in a few similar contexts: even if you could measure all the things, and you could create a perfect/optimal cost function, there would still be no guarantee that you'd be able to find the optimal global solution. So relax.