Monad Shoal is classified as an intermediate dive, and most shops require divers to have advanced open water or deep dive certifications since the depth surpasses the normal 18m limit for open water divers.
For the rest of us who worry about the wisdom of America being the only nuclear power (actual or wannabe) that is systematically engaged in denuclearization, however, the prospect of a future strategic "Monad" is alarming.