This was the highlight our Honolulu trip! The guides were very safety minded while still having a ton of fun and doing a great job of guiding us to the TURTLES! We saw so many of them, it was amazing. And the guides seemed just as excited as us, which made me feel like less of a tourist and really enjoyed the experience. Great for all levels too because they either let you jump right in (with snorkeling gear and floatation vest) or ease in by practicing on a float in the water. It was a perfect amount of time, as well. I had just decided to go back to the boat because I was getting tired when they called us back in.
They also gave us lots of information on the different turtles we saw, including ages, weight, names and history. It was a great experience and would beyond recommend this experience. I would suggest bringing a waterproof camera or go pro because they do not offer pictures (but will dive down with your camera and take pics for you).