Living Underwater with Our Host, Dr. Marc O’Griofa

Living Underwater with Our Host, Dr. Marc O’Griofa

Living Underwater with Dr. Marc O’Griofa Dr. Marc O’Griofa has led an amazing life. Originally from Ireland, he’s been around the world not once but twice. He’s been cave diving and diving with sharks, even cage diving with Great Whites off the southern coast of...