A DOG owner from Bewdley took his tenacious terrier up the UK’s highest mountain to raise money for a children's oncology unit where his six-year-old granddaughter is undergoing cancer treatment.

It took grandad Robin Galloway, his parter Kay Dennison and 13-year-old pooch Choc just seven hours to reach the top of Ben Nevis, despite the Patterdale terrier recently undergoing life-saving surgery on both of his rear legs.

The 4,000-foot climb is Robin's second of three mountain fundraisers, which aims to raise £500 for the children's oncology department at Worcestershire Royal Hospital, where granddaughter Mia, from Kidderminster, is currently being treated for acute lymphoblastic leukaemia.

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Robin, aged 67, said: "This walk was incredibly important to us as we want to raise money for the children's oncology department at Worcestershire Royal Hospital, where our beautiful granddaughter Mia is currently being treated."

He added: "Visibility was quite poor on the walk with snow around us, but Choc loved it as he has a great attitude and loves his walks.

“Mia is always asking after Choc and thinks it’s wonderful that he walked up the mountain.

“The staff at the children's oncology unit at Worcestershire Royal are second to none and they work wonders with all the children that pass through the unit, not just Mia.

"In fact, they are more than healthcare professionals - they are family.”

Choc was able to join the climb thanks to transformative surgery on his cruciate ligaments, performed by the team at Severn Veterinary Centre in Worcester.

Robin said: "Choc isn’t the youngest of dogs and his leg muscles had deteriorated over the years.

“I’d never have dreamed he would be up to the challenge of climbing Ben Nevis, and indeed he wouldn't have been if it wasn’t for the fantastic job carried out by Jock and the team at Severn Vets to get him fit again."

To finish the Three Peaks Challenge, which has already taken Robin up Mount Snowdon in Wales, the doting grandad will also be tackling Scafell Pike in June.

Donations can be made through the Mia's Grang Grang Mountain Mission Facebook page.