A Royal Marine is ready to 'catch up on all the calories missed along the way' after completing a gruelling 482-mile running challenge between three mountain peaks. 

Ben Clough, who is serving as a Royal Marines Commando physical training instructor, completed the ultimate endurance challenge, running the National Three Peaks – Ben Nevis, Scafell and Snowdon. 

Starting the Summit Attack challenge on August 13, Ben ran an average 50 miles a day for nine days straight and climbed a total of 47,592 feet – more than one and a half times the height of Mount Everest.

Lancashire Telegraph: Atop Yr Wyddfa (Snowdon)Atop Yr Wyddfa (Snowdon) (Image: RMA)

Ben, from Helmshore, said: "Summit Attack was definitely the biggest challenge I've done to date. I finished way under schedule so was definitely shifting throughout each day. It was very mentally draining and I had a few niggles physically but a solid mindset made me get the job done.

“Now I need to concentrate on getting my body back moving properly again - and catch up on all the calories I missed along the way!"

Lancashire Telegraph: Ben at Llanberis finish point with his dadBen at Llanberis finish point with his dad (Image: RMA)

Ben, 28, has raised more than £12,000 for two charities close to his heart, The Royal Marines Charity (RMA) and mental health charity, MIND.

Writing on his Just Giving fundraising page, Ben said: “I'm aiming big this year, I want to raise £48,200 (one hundred pounds per mile on his route) for two separate charities.

“The first being the RMA who help the entire Royal Marines family, offering a range of services to both servicing, veterans and their families.

“The second charity I will be supporting is MIND, who offer advice and support to empower anyone experiencing a mental health problem.

“Both these charities are very close to my heart and I want to do everything in my power to raise as much money as humanly possible and smash this epic challenge out the park.”

To donate to Ben’s Just Giving page, visit here.