A DAD-OF-THREE will have to brave temperatures as low -35°C as he runs a marathon for the charity helping his son live with autism.

Chris Woolnough is taking on an epic 26.2-mile challenge in Antarctica to raise funds for Cheshire Autism Practical Support (ChAPS).

The Northwich-based charity has been 'a tower of support' for the 40-year-old's son Thomas, aged seven.

No stranger to marathons, Chris, who will be one of only five Britons completing the 'Ice Marathon', said it will be 'the toughest thing he's ever done'.

He added: "Every bit of skin has top be covered to avoid frost bite and it's so cold, sweat turns to ice on the body.

"You have to wear multiple layers and ski goggles and mask to help protect against the wind chill and even carrying water isn’t possible as it turns to ice.

Northwich Guardian: Chris and his son ThomasChris and his son Thomas (Image: Chris Woolnough)

“It will be the toughest thing I’ve ever done but CHAPS has been a tower of support to my son Thomas and family."

In preparation for the run, Chris went running in Finland, but wasn't hampered by the cold, rather charging reindeer instead.

ChAPS run training support services for parents who’s children have autism. The organisation has also taught Chris and his wife how to deal with Thomas’ behaviour traits, one of which is known as ‘demand avoidance’.

They also help the children cope with anxiety, whilst nurturing them through fun activities such as swimming and trampolining.

Northwich Guardian: Chris' son ThomasChris' son Thomas (Image: Chris Woolnough)

Chris added: “The training has helped my wife and I handle these situations and give us all quality time together.

“As Thomas grows older there are clubs and activities he can enjoy with youngsters his own age. It really is a wonderful charity and I hope I can meet this challenge.”

Chris, from Sandbach, will travel to Antarctica, via Chile and Brazil, and will have a few days of preparation before the marathon begins.

He is hoping to raise £5,000 for the charity and has set up an online fundraising page for donations.