Everyone:
Here's a tale of a difficult, hours-long rescue of a solo kayaker in West Virginia. It's pretty harrowing, and was possible only by several coincidences lining up:
https://www.americanwhitewater.org/content/Accident/detail/accidentid/112642
He was an experienced kayaker, but running a dangerous fall at high water, alone. BAD idea. If he had been with another boater, or even if he'd had his name in his boat, it would have been a lot easier.