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 worlds 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. Show less