This site had the healthiest reef of the several I visited. One reviewer said it was like being inside an aquarium...that's true, though I don't like the metaphor (Hawaii is experiencing a significant problem with aquarium fish collection.) We actually snorkeled this area because the abundance of life is within 25 meters of the shore, including numerous turtles. The site is very popular and crowds can be a problem in the water and with parking, as parking is limited at the site. Yellow tangs are so plentiful here, that you have to appreciate that the area is a protected marine sanctuary free of collectors. I can only imagine that a night dive here would be phenomenal. Dive charters also frequent the area. I didn't see any larger animals.