I have now had the great pleasure of diving with this group the past 2 years on my visits to Oahu, Hawaii. Each time they have welcomed me as a returning good friend and the dives have been great. If you go before the big waves hit the North Shore, you can dive there or in other months enjoy the South shore with them. They are dedicated to the ecology of the ocean as the name implies. I cannot recommend them highly enough! Be sure to dive with them if you are on Oahu, You will not regret it.