英语听力：自然百科 海洋天堂大堡礁:堡礁内外—11（在线收听）

 It's been an absolutely exhausting night for any of the turtles you can see behind me, in fact you can actually make out this old girl here, she is absolutely shattered, she is completely spent, and she is just desperately trying to get back into the sea before the heat of the sun kicks in. For the last leave, it's a race against time, in a couple of hours the temperature on the sand will soar, and on one part of the island, there is a major obstacle that wasn't there when they arrived, rocks exposed at low tide make the return to water anything but easy, being reptiles sea turtles have little control over their body temperature, there is no shade anywhere, so those left on the beach risk being cooked alive.