Ride in son's memory

It was the untimely death of his beloved son that inspired Adelaide grandfather Norm Watson to travel the country by bike to raise money for the Childhood Cancer Association.

The 75-year-old former civil engineer said the whole family had been devastated by the loss of his son Steven, who he described as "like his twin" and who shared his dad's passion for motorbikes.

Mr Watson said plans were already underway for the fundraiser when Steven died after a heart attack 18 months ago.

He said he knew he must follow-through with his plan to travel the country on his Honda NT700V Deauville, passing through Mandurah and Rockingham on Saturday.

"My son was my best mate and my riding buddy," Mr Watson said.

"His death was very hard to take; this is definitely for him."

Mr Watson said he had lost a sister in childhood to cancer and hoped to raise as much as he could for the Childhood Cancer Association.

He said businesses across the country had been generous in providing welcome parties and accommodation.

Mr Watson set out from Port Augusta on Friday last week, travelling through Port Lincoln and Streaky Bay before riding on to WA soil on Monday.

He will travel from Busselton to Fremantle on Saturday on day nine of the five-week trip.

Visit www.nevertooold.org.au to find out more.