Cascading failures
I failed to bike Mount McKinley, failed a hike to the Pinnacle, but I did see the Aqueduct Cascades.
So, the plan for this day was three events: I'd bike Mount McKinley via Gold Creek (link), then I'd go see bison in Santa Clarita, then I'd cap it off by seeing the Los Angeles Aqueduct. Obviously, it didn't work out that way.