He will love it. I took my grand children to it last November at the Kirklees Light Railway. It was a good 5 hours out Tomorrow its forecast to be very thundery. Sunday looks to be ok so I'll probably head north to see my mum tomorrow and save Sunday to go out on the bikes
I don't get cycling, its like dressing up in public and the bike is an excuse. If you wanna shave your legs and wear big pants, do it, but stay on the pavement