I have been coming to Kauai for the past 38 years, and author the Kauai Underground Guide. Seasport Diver's trip to Niihau is the best diving you will find anywhere "on" the island. In three dives, we saw monk seals, sharks, a manta ray, eagle ray, rare fish.... you name it. The crew is exceptional. They are knowledgeable, friendly, and make you fee safe yet not confined.
If you have your dive certification and want one "not to miss experience," this is it!
breakfast, lunch, snacks and drinks -- all included!