dabeaz, Sure, there's bike riding. And early morning bike riding into the sunrise. And early morning bike riding into the sunrise in the crisp clear air after a rainstorm. But then there's early morning bike riding into the sunrise in the crisp clear air after a rainstorm under the wispy skies of an aurora borealis. In Chicago. Sublime.
Aurora borealis with Ba'hai Temple (Wilmette) in foreground.