BBC radio and TV presenter Sara Cox completed a five-day, 135-mile endurance challenge to raise money for charity.

Cox took on and finished a charity endurance challenge for 'Children in Need' where she ran 135 miles for over five days carrying a Pudsey Bear backpack. CalledGreat Northern Marathon Challenge, she is the latest BBC star to do an annual endurance test for the charity.

She announced her audacious endeavor in September, and embarked on it last Monday, 10 November.

Cox started her epic journey Monday morning, hitting the road in Kielder Forest where she covered 27 miles. On day two, she made her way to Wolsingham from Hexham, where she tackled a 1,500 feet ascent up Baal Hill.

Day three had her climbing steep hills from Country Durham to Richmond and day four was an almost 13-hour journey to Ripley.

Finally, on day five, Cox barreled through the rain brought byStormClaudia to reach the finish line in Pudsey, where she was met by fellow Radio 2 host Scott Mills.

'It's just the hardest thing I've ever done, I've never known pain like it,' she told Mills. 'Thanks to everybody who let me stop for a wee at their house - it was a few people!'

Cox's fundraising mission was BBC Radio 2's longest in terms of duration.

By Friday evening, it was announced that Cox raised £9,523,028 ($12.5 million) for Children in Need, BBC's official charity which raises money for disadvantaged children across Britain.

'It was a rollercoaster. Like, literally my mood was changing every three, four seconds,' the 50-year-old described.

Source: International Business Times UK