We had a fantastic time with Blue Water Maui! My daugher, my niece, and me did an afternoon snorkel and SCUBA cruise out of Mala Boat Ramp in Lahaina. On the way over to snorkel off of Lanai, we saw a bunch of whales, and Captain Mark stopped the boat several times so we could watch the whales. It wasn't technically a whale-watching cruise, but Blue Water Maui threw in the experience for free!
Captain Mark, Nixon, and divemaster Ethan were all great! They were super friendly and full of lots of knowledge about the whales and the islands.
My daughter did the intro to SCUBA dive. She had never dived before, but Ethan was extremely patient and a good teacher, and she loved the experience. The dive off the old Mala pier was fantastic. We swam within a foot of a turtle, saw 3 sharks, an eel, and a ton of fish.
I would recommend Blue Water Maui to anyone!