No, sadly, this is not a new novel I just found and am reading. This is real! And, it's a new 'place of the day'.
Chuuk Lagoon, Chuuk, Micronesia
So what's the big deal about this lagoon? Well, it just so happens to have the largest concentration of sunken ships in the world (most if not all from WW2). At least 60 Japanese ships are wrecked there, which makes for very interesting diving - huge artificial reefs and choral have been created as a result of the warm tropical water, and are a must-see. Enjoy!