<a href="http://www.kirkscubagear.com/blog/accident-analysis-and-the-birth-of-modern-cave-diving/"><img class="alignnone size-full" src="http://ontarioexploration.com/oldsite/wp-content/uploads/2016/01/dos-ojos1-300x225.jpg" alt="" /></a>Source: <em><a href="http://www.kirkscubagear.com/blog/accident-analysis-and-the-birth-of-modern-cave-diving/">Accident Analysis and the Birth of Modern Cave Diving</a></em>