Helen's Polar Challenge for Sport Relief

Helen's fitness is put to the test; is she strong enough to take on her Antarctic adventure? Helen also meets the world's greatest living explorer to get some top tips on how to survive in the extreme cold.

Helen travels to California to get to grips with her specially-made ice bike in stage two of her training for the South Pole.

Helen is back in the UK to learn how to use power kites on land and in the water, as part of stage three of her training for the South Pole.

Helen travels to New Zealand, where she tries kite-skiing for the first time; it is the fastest and most dangerous form of transport she will be using to get to the South Pole. And can she survive her first night in a snow hole?

Helen meets her team-mate, Norwegian kite-skier Niklas Norman, for the first time as they travel to Iceland to complete the final stage of training for her Polar challenge. But will they learn the skills they need to survive the extreme cold in time?

Helen finds out if five months of training have paid off as she finally arrives in Antarctica for the start of her polar challenge for Sport Relief. Her first week is spent acclimatizing to the harsh conditions and freezing temperatures, but storms and illness make life in the world’s biggest freezer even harder for Helen. After testing the three modes of transport she hopes to reach the South Pole on, it is time to start her 500-mile trek. But on day one, her choice of transport is called into question.