Nigel Rimmer, 51, Robert Holmes, 49, and Ian Cockcroft, 54, are getting ready to start the 124-mile trek in the blazing heat from Pamplona to Belorado on August 8.
The walk is part of the Camino de France, a walk that has been taken on by millions of pilgrims from all over the world since the Middle Ages.
The friends decided to take part in the walk after Robert embarked on the full 447-mile walk last year, but was unable to complete one section due to injury.
Robert was joined by Nigel for the last six days of the walk, and this year the trio have decided to complete the section that was missed last year.
All funds raised will be going to Pendleside Hospice as Nigel’s employer, Kirk UK, is taking part in the hospice’s Corporate Challenge, where local businesses battle it out to raise the most money for the hospice.
Nigel from Colne said: “We are all keen walkers and decided last year that we wanted up the ante and do something outrageously hard.
“The walk is going to be extremely challenging as there will be very little shade along the route and at the end becomes very hilly.”
The trio will be setting off at 6am daily and will walk around 20 miles each day, carrying all their clothes and equipment.
Nigel added: “Kirk UK decided to take part in the Corporate Challenge last year as we have a lot of members of staff who have had relatives that have used the hospice services, so it is a cause close to our hearts.”
Kirk UK is also holding a charity cricket match for the hospice at Colne Cricket Club on Friday August 25. The event starts at 6pm, it will see Colne cricket Club XI team take on Colne Golf Club XI, and will feature a barbeque, DJ, raffle and post match entertainment. Admission is £2 adults, £1 concessions.