I once saw a Manta Ray at the beach and swam right next to it!
Manta Rays are very extraordinary creatures with their triangular pectoral. I hope one day I will finally go scuba diving and swim along one too
I heard Manta Rays were dangerous, is that true?
I have not heard such thing and don't really think it has any basis. There are some who even use manta ray night dive during scuba diving