This was the highlight of our fantastic trip to Hawaii. We read other reviews and selected C Big Island Tours based on the reviews, pricing, and availability. And are we glad we did. Our tour guides were friendly, helpful, interesting, and funny. They captivated us throughout our trip. And they knew how to attract the manta rays. We had 13 different manta rays, 8-10' wingspans, with up to 8 at any given time coming within 4 inches of us as they performed their beautiful, graceful dance right below us. There were several other tour boats out there together but we had the best show. One family had a Go Pro that they had to move out of the way the mantas were so close to us.