We've been to the Big Island a few times but have somehow missed his gem up until now. It was quite busy when we arrived but somehow still seemed very peaceful. It's extremely peaceful in the water too as long as you keep away front the '2 step' entry/exit point - then you might get a flipper to the face!
We didn't see any dolphins or turtles this time but it was an amazing experience nonetheless. We need get to see an eel, a big variety of fish and some gorgeous coral.
Getting into the water via the 2 steps is a piece of cake but exiting is a bit daunting if you're a wimp like me! I survived though so anyone can do it!
I would definitely recommend this spot but remember to be respectful and look after this beautiful place.