About the Show
Off the coast of Granada, lies an underwater volcano so treacherous that no ships are allowed within 16 kilometres of it. Can Bob Ballard survive a dive into this “ticking time bomb”?

Newsletter

Never miss a Nat Geo moment

Your email address
Submit
We use our own and third-party cookies to improve our services, personalise your advertising and remember your preferences. If you continue browsing, or click on the accept button on this banner, we understand that you accept the use of cookies on our website. For more information visit our Cookies Policy AcceptClose cookie policy overlay