Blue Peter presenter Helen Skelton completes south pole challenge

Blue Peter presenter Helen Skelton has completed her gruelling 500 mile expedition across Antarctica for Sport Relief.

The 28-year-old arrived at the South Pole at 10.40pm British time on Saturday, a spokeswoman said.

During her 18-day adventure, she became the first person to use a bike as part of an expedition to the Pole.

She also travelled by ski and kite as she battled with severe snowstorms, temperatures as low as -48 degrees Celsius, numerous blisters, a hacking cough, stomach troubles and a bad bout of dehydration.

On arrival at the Pole, she celebrated by staking her flag in the frozen ground to mark the end of her journey.

Speaking to the BBC, Skelton said: "I've seen how Sport Relief money makes a big difference and that's why I can't complain about any part of this because it's nothing compared to what some people go through every day of their lives."

To find out more about Sport Relief 2012 and enter a Sport Relief Mile go to bbc.co.uk/sportrelief