Kaanapali Snorkel Sea Scooter Eagle Ray Follow
https://www.mediafire.com/file/dg04c3o0igkn78d/pdf-98839-34788.pdf/file
Used a Sea Scooter to follow a spotted eagle ray for several minutes along the reef. That would have been completely impossible swimming. Kaanapali Ocean Adventures being the only tour with these is a genuine advantage