My wife and went on a Manta Ray night snorkel in December of 2013 and highly recommend Kona Diving Company. First let me say that I agree this is one of the top snorkel/diving experiences. The Manta Ray is a graceful and beautiful create to experience first hand. This was my wife's first experience snorkeling other than a few minutes that morning in a lagoon. The guides are very safety conscience and made the effort to make sure inexperienced, and experienced people are comfortable and safe. Very professional from taking our reservation to checkin and of course the dive trip. While not beyond intro-scuba myself the divers on the trip made several comments on how professional and thorough the dive master was and how much they enjoyed the dive. A lot of attention is made to details down to maintaining wet and dry areas of the boat. They had salt water buckets for prepping your mask and freshwater for cleaning your gear and underwater camera. They can supply any gear you need. Got mask and snorkel and just need flippers and a wetsuit, no problem. I was able to see they run a full shop, tanks to clean all the gear and suits between use. The diver in charge of then snorkel group for our tour had a marine biology degree, more than just snorkeling trip we had a great review of the sea life in the area and a great talk on the Manta Rays themselves. We will certainly use Kona Diving again when on the big island.