Go Deep In Micronesia
The giant manta rays of Yap will blow your mind. Island hop over to Palau for the corals, the big fishes, the turtles, the astonishingly clear, warm water (and the opportunity to snorkel with stingless jellyfish). Then catch a flight to the Marshall Islands, which you may know as a nuclear testing site, but has more recently become the world’s largest shark sanctuary.
