An Alien World


Hang Son Doong is located in central Vietnam and is the world’s largest cave. It was only explored for the first time in 2009 and is just now opening up to very limited tourism.

A Submerged Park in Austria

austria-underwater-park-gruner-see-green-lake-styriaGrüner See (Green Lake) is a lake in Styria, Austria in a village named Tragöß. The lake is surrounded by the Hochschwab mountains and forests. The name “Green Lake” originated because of its emerald-green water which comes from the snowmelt from the karst mountains.