No one else wanted to join, so I climbed South Arapaho by myself. Added in Old Baldy as a bonus. Started kind of late; got stopped at Nederland High School around 11am due to parking at 4th of July being full, but was let through by 11:30. Beautiful weather (aside from the views of several wildfire smoke plumes) and barely saw anyone else on the trail after the turn-off to Diamond Lake. I was surprised there wasn't even a social trail up Old Baldy, but I was able to rock-hop most of the way to stay off the tundra. No summit marker either, so I wasn't exactly sure when I got to the top; it's a very flat and nondescript peak. Got back to the car just before dark, just over 6 hours total. If I were in better shape the time would have been faster; the final steep approach to South Arapaho took me almost an hour due to rest breaks.

I definitely want to go back for North Arapaho at some point.