Had a great time snorkeling here at Honolulu it was fun snorkeling in the sea where i got to see a lot of sea turtles and fishes. Beautiful corals too. The crew was very friendly and they took some compimentary pictures under water which they post on facebook for free. However i could not get my pictures nor none of our trip members got it as the camera was flooded. Take some food while you go for sail as you would be hungry for an hour of snorkel. They sell juices and non alcoholic drinks while you sail for $1 the cheapest you can find in honolulu ;) . BYOY or your coolers with beer to have fun after you snorkel as they take you on a sail along the waikiki costline after the snorkel.
Also kids under 2 are allowed to sail in this catamaran, though it was bumpy a bit i would still recommmend this for a family.