Simply amazing! Probably the best snorkeling experience we have ever had. Usually snorkeling takes up a chunk of the day, and requires driving somewhere, then going out far on the water. Not this one. The reef is practically off Waikiki beach. Quick ride on catamaran off shore, and we were swimming with the turtles for almost 2 hours. We had most of our day free, and took 2:30pm tour. We went in April and saw a baby turtle in addition to several adult turtles. I was surprised to see a lot of fish as well. The turtles are AMAZING! MAJESTIC! And you will be within arms reach of them. The guys are in the water for safety of humans, but also making sure that humans don't touch turtles and give them space to come up for air. I liked that, because we've all seen dumb tourists who think rules apply to everyone but them. Manakai catamaran staff of three were great. The equipment was clean and in great condition. They provide floating belt which I liked better than life jacket (less bulky). Definitely the highlight of our trip! Highly recommend.
Mahalo!