Kona manta ray night tours put you in dark ocean water after sunset, and they are a distinctive Big Island experience. I would not choose an operator by the sighting rate it advertises. First decide whether you are comfortable floating in dark open water, then compare the live total price, meeting point, boat and group format, minimum requirements, cancellation terms, and no-sighting policy.
Mantas are wild. Weather can cancel a trip, and animals may not appear. I would book early enough in your stay to preserve a backup night, and never let a nonrefundable itinerary force you onto the water when conditions or your health say no.
