I think they will have a really great time when they do the ride. As you probably know, I was the official photographer for this year's event and it really is a wonderful trip.
I wish I was fit enough to take part rather than just take photos, maybe something I could consider if my fitness improves in the future.
Please pass on my thanks to your sons for doing this, they are helping all of us with their fundraising.
I do have a set of pictures of this year's event on facebook so these may be of interest.