The atoll of Manihi is more than 3 miles wide and 19 miles long. There are numerous dives sites in Manihi and all are just a 5-minute boat ride away. Between the breathtaking ocean walls that descend over 5900 feet and the many passes, you will find the waters of Manihi alive with a beautiful variety of coral gardens, snappers, napoleon fish, giant jack fish, marlin, tuna, eagle and manta rays. You will also find four varieties of sharks; black tip, white tip, nurse and gray. If you are lucky enough to be in Manihi two days after a full moon, you will find the waters filled with hundreds of yellow perch. Visit June/July and you will see hundreds of marbled grouper as they gather to mate. June through December is the best time to encounter manta rays. Manihi is an excellent dive destination for divers of all levels.
"The water at Emerald Pool wasn't as emerald green as pictures show & what people tell you. Maybe it's because the sun wasn't shining directly into it? It was disappointing but I would give it a second chance & go back to see it on a sunny day. There was a nice, gentle waterfall & a cool, cave-like area to play in. "