Neale Redding and his two work colleagues will take up the challenge of climbing the 3 Chiltern peaks in September in aid of the charity Rennie Grove.
With his team, he will be tackling the 18-mile route across the three peaks of Whiteleaf, Coombe Hill and Ivinghoe Beacon on September 15.
Mr Redding, from Weston Turville, said: “I really enjoy a challenge and this is as close as they get for me as I live just a few miles from Wendover.
“This along with the fact that the charity is one which is close to my own heart meant it was a no brainer”.
The charity Rennie Grove was chosen due to Mr Redding’s dad receiving care from the nurses through Iain Rennie Hospice at Home after being diagnosed with cancer.
He said: “The support they gave both to my dad and the whole family was really invaluable and was a great comfort throughout very stressful and upsetting times.
“I am so pleased that I can now help them in turn by raising money and taking part in this event and would urge other people to support this vital local service too.”
Joining Mr Redding on his challenge will be his colleagues Kirsty Shepherd, from Reading, and Paul Williams, from Bramley.
They have named their team The Poncho Bandits and Mr Redding revealed the story behind the name.
He said: “A few years ago when we took part in another walking event, Paul decided that rather than splash out on a decent waterproof jacket, he would purchase a £1.50 poncho.
“Watching him battle the poncho in the pouring rain and wind was pretty amusing so we decided to remind him of this with our team name.”
The challenge begins in Princes Risborough and the team will be travelling 18 miles, covering the whole distance between and up all three peaks.
If you are interested in signing up for the challenge call 01442 820739 or find out more information at www.c3peaks.com