Earth's most extreme destinations

1.   Hang Son Doong cave, Vietnam 

                    It is the world's largest cave, so vast that  it has its own weather system and jungle inside  !!!!

2.  Oymyakon, Russia   

                   It is having coldest temperature in permanently inhabited location.

3.  Danakil depression, Ethiopia 

                         It has boiling lava lakes, sulphur springs and extreme heat.

4. Kilauea volcano, Hawaii,  USA

                           It is one of the most active volcanoes continuously erupting since 1983.

5.  Skeleton coaat ,  Namibia 

                      It is dubbed as Gateways of hell.

6. Blue hole,  Belize 

                       It is a giant underwater sinkhole which is 125 m deep.