A killer distance freestyle pool set as reported by SwimSwam (500 yards is 457 meters):
Copyright © 2012 by Open Water Source
To educate, entertain, and enthuse all those who venture beyond the shoreline
World Open Water Swimming Federation, a human-powered project
A killer distance freestyle pool set as reported by SwimSwam (500 yards is 457 meters):
Copyright © 2012 by Open Water Source