<p>10:10am Wednesday 26th March 2014 in News By Tara Russell, Feature Writer</p><p>Alex Mustard and a playful seal</p><p>ALEX Mustard's lungs were practically bursting after using all the air he had sucked in.</p><p>But with experience from his bulging CV of 3,500 dives, he'd spent hours carefully timing the exact second he would free dive into the Caribbean Sea off Mexico's Yucatan Peninsula.</p><p><a href="http://www.dailyecho.co.uk/news/11064937.The_incredible_underwater_photography_that_captures_life_under_the_sea/?ref=mmsp">Keep reading...</a></p>