Beyond Antarctica's rich coastal fringes, lies a vast frozen interior.
This is certainly one of the most inhospitable places for life on earth.
Its icecap, three miles thick in places, holds almost two-thirds of the earth's fresh water.
The accumulation of snowfalls over millions of years has bedded vast mountain ranges longer than the Himalayas.
All that can be seen of them is the tips of their peaks.
Smoking vents standing 20 metres tall hint at the volcanicity that lies beneath the ice sheet.
The recent discovery of more than 20 previously unknown volcanoes reveals that Antarctica is one of the most volcanic places on earth.
Almost 4,000 metres high, mount erebus is one of just seven volcanoes on earth with a permanent lava lake.
Less than 1% of this frozen interior is free of ice.
But isolated outcrops of rock offer sanctuaries for one of the few animals willing to brave temperatures of minus 30 degrees celsius.
The snow petrel.
They fly 100 miles inland in order to breed away from predators.
This male gets to work clearing a shallow scrape,
which he will then line with feathers to give his chick a little protection from the bitter cold.
But crevices are in short supply. And rivals are ever ready to fight for them.
When aerial combat fails, snow petrels deploy another weapon. Vomit.
It could be lethal. If the putrid stomach oil freezes, his flight feathers could stick together.
Fortunately, he knows how to clean them... with a snow bath.
Now to get on with the task of breeding.