Lican Cabur
At 5,916 meters, or over 19,000 feet, Lican Cabur has the highest eco system in the world. Lying in the crater is a lake with live crustaceons, says Phillipe, our marine biologist guide. And with snow and ice all around, it doesn't freeze, showing that even though the volcano has been inactive for many, many years, there is still a heat source warming the lake.