For anyone that hasn't heard of Coqui frogs before, they are pretty cool animals. Little guys, but a single one can be surprisingly loud and throw its voice pretty effectively. AFAIK they're only really found in Puerto Rico - apparently they can survive in other warm climates but will not sing? Maybe that's an urban legend though.
Anyway I know the sound is a little contentious (some hotels get cats to cut down on guest complaints about the Coqui) but I'd recommend checking it out: https://musicofnature.com/coqui-magic-nightscapes/