Great site. I've snorkeled and dove it often. I haven't seen any dolphins, but I have run across some turtles and an abundance of eels and triggerfish. Good reef system but most of the fish habit the end of the discharge tubes from the power plant. The site is hit or miss during the winter because of the surf, but during the summer it's usually pretty flat. Watch out for locals spear fishing and keep an eye out for the Ko'Olina Kat, which will stop directly above the tubes.