Did this as a night dive many years ago - thought it outrageous. Saw 3 types of scorpion fish, the mother of all turtles, and much much more. A very memorable dive. Did this by snorkel more recently. 3 spotted eagle rays greeted me upon entry. Even the hotels and tourists cannot scr*w this up! I have done this snorkel several times. Just beautiful - rainbows over the Maui mountains. PS. if you start at the north Sheraton side and dive/snorkel towards the Sheraton you can sneak a hot tub at the hotel.