I ride more than my birthday miles every year, just not on the day. I'm not a big celebrator, though we did ride my wife's age on her 70th. One thing is wanted to do and didn't get to do, is to ride a chunk of the Sierra Cascade bike route. Now that would be an adventure. Our best adventure was to ride our tandem for 2 weeks in the Czech Republic, by ourselves, on a route of our design. That was incredible fun. Numbered bike trails, no main roads, beer, warm people . . .
Adventures are things you come back from.