Thanks for sharing this! I've got video of these beautiful creatures doing their graceful dance all around me right off of The Big Island, Hawaii. What an experience!!!
Ive been swimming with manta rays in the Maldives and it was one of the defining moments of my life, unfortunately I wasn't into photography when I visited the Maldives and I deeply regret only buying a disposable camera to use :(
http://lightbox.time.com/2011/06/29/underwater-giants-the-magnificent-manta-rays-of-the-maldives/#1