The second day on Maui, we did the Molokini Crater snorkel through NCL. We really enjoyed this as well. Please note: they do recommend, rightly I think, renting wetsuits so you can stay in the water longer. The water here is not as warm as the Caribbean, so this is a good idea. We were charged $10 for each suit. Once snorkelling is done, there is lunch and a sightseeing component. At this time, they open the bar and all drinks are $1.