That’s a COLD swim.
Article days she trained for three months in cold water and cold conditions to get ready for it - including no hot showers, etc.
Incredible achievement. Literally awesome.
https://www.nodc.noaa.gov/dsdt/cwtg/cpac.html
64.2 (F) degrees on August 9th. Cold, but warmer than usual. I wonder if the date she chose was projected to have the warmest water temperature of the year?
San Francisco beaches may look nice, but they attract few swimmers. The first time I stuck my foot in the water, I found out why.