Daily 20+ mile sprints at the beach in North Carolina with my daughter and son in law. Flat, but with strong winds. They've been training in spin class since January in an effort to 'beat the old man', although they were both pretty fit a couple years ago before the birth of their second child.

Today's average speed was 21.7 mph, on a 1988 Cannondale SR500. I'll be 68 in a few days.