Thanks for the tip. With so many days off work that week, it is something that might be possible. At first, I thought "No way, I can't ride 500 miles in December with it being so cold." Then, I saw it is only 500 kilometers. "Okay, that might be doable. That's only 310.7 miles." Then I saw that it is only one week, but thankfully, Christmas week...with a lot of time off work. So, I joined. With five days off, (Dec 25-29), it's looking better and better. Six half-centuries, with a short "recovery ride", will put the mileage over the top. (Or five metric centuries.)

Do we have seven or eight days to complete the task?