Easily one of the most amazing experiences of my life. Was a 20-25 minute boat ride to the spot with the mantas, 15 mins on the boat while they got us set up, and then at least 45 mins in the water with them. We saw not only many mantas but also beautiful schools of fish. They give a pool noodle for your feet so you don't get tired staying horizontal on top of the water. Crew was knowledgeable and ran a fun excursion, we felt very safe hopping in the water at night. Such a fun experience, and unique to Big Island. One of the coolest things we've ever done, highly recommend!