Roy Everitt is taking on the 1,900km challenge to raise money for Dementia Jersey, in honour of his mother-in-law.
The 67-year-old will tackle the challenge from Land’s End to John O’Groats with his brother-in-law and three other friends, supporting Dementia Jersey.
The keen cyclist chose this charity specifically, as his mother-in-law suffers from vascular dementia, which is thought to affect around 180,000 people across the UK.
Roy said:
"This isn’t my first big trip and won’t be my last, although I think it might be the hardest!
"I love cycling though, and I’m so happy I can raise awareness and money for a very good cause while I’m doing it."
Roy Everitt
The team will be cycling 1,900 km from Penzance, Cornwall to Caithness, Scotland and plan on doing around 60km to 100km a day.
With the challenge starting Sunday, 8 September, the weather is expected to be a little wet and windy, with temperatures in the mid-teens.
Roy wants to raise £1,000 for Dementia Jersey and islanders can donate to his JustGiving page, where everything donated goes straight to charity.

Man in hospital after serious assault at Havre Des Pas festival
Channel Islander abandons Bordeaux as the flames 'arrive at the city's gates'
Nowacki wins Jersey’s first Commonwealth Games medal in 36 years
Thousands expected at Havre Des Pas Festival this weekend
Commonwealth Games: Nowacki into 100m breaststroke final
Channel Islands face 'physical' Poland test
Price of heating oil and other fuel increase by more than half in a year
Man jailed for importing nearly £600k worth of cannabis in bumpers of his car