Wayne Dixon, a Network Rail flagman, challenges himself to take a sponsored 359-mile bike ride for a week in September.
The money he and his friend Garry Nightingale raise will go to Rowcroft Hospice in Torquay.
The duo will spend 6 days cycling through four countries, starting in London on September 24.
Once they start, they will travel to France, Holland and Belgium, ending in Ghent on September 29.
The couple are aiming to raise £500 for the hospice which provides care for people with life-limiting illnesses and their families.
You can keep up to date with the challenge and find out how to donate at https://www.justgiving.com/fundraising/wayne-dixon11
Wayne said: “I’ve been a cyclist for years, but a 2012 campaign among Exeter flagmen to cycle to work really boosted my interest in exploring the world on two wheels.
“Every year I go on a fundraising run with friends and this year is no different.
“We hope the funds we raise can really make a difference to Rowcroft Hospice. The support they gave to a member of our rail family a few years ago meant a lot to me, the work they do is invaluable.
“We hope that by the end of our trek we will have met or even exceeded our goal – every donation helps us stay motivated on our journey, knowing how much the funds will mean to Rowcroft House.
“No matter what the roads and skies of Europe throw at us, we’ll keep turning those pedals, because it’s all for such a great cause.”