Facing temperatures as low as -90 degrees C, one photographer has captured the breathtaking beauty of wildlife and nature in some of the harshest environments on Earth.
Alex Bernasconi has travelled the world capturing images of mother nature at her best.
1.A wonderful arch in an iceberg near Paulet Island. Geothermal heat keeps parts of the island ice-free, and it is believed that its volcano was last active within the last 1,000 years.
2.This stand-off in St Andrews Bay - which is teeming with wildlife - sees an elephant seal facing a king penguin as they mark their ground.
3.Gentoo penguins stand tall on an ice-capped island in Gerlache Strait, Antarctica.
4.Mountains stand shrouded in cloud in Bransfield Strait, Antarctica.
5.Adélie penguins on the ice in Antarctic Sound..
6.Cave iceberg, Brown Bluff - a tuya located at the northern tip of the Antarctic Peninsula, Antarctica. It formed in the past million years.