Amazing: A boat goes over an eruption in the ocean - lucky to survive.

http://simplecapacity.com/2016/02/when-this-boat-crew-realized-what-they-were-seeing-it-was-almost-too-late-to-escape/


They were sailing and the ocean suddenly had pumice sand all over the surface of the water.  As they sailed through it, it kept going.  They were witnessing and island being born from on undersea volcano.