DETROIT, MI. -- Extreme distance swimmer, Jim "the Shark" Dreyer completed a 22-mile trek across Lake Saint Claire in Detroit, all while pulling 2,000 pounds bricks in a raft behind him.
It took him more than 50 hours to complete the feat to Belle Isle Beach in Detroit.
He expected it would take him 30 hours.
Dreyer used a GPS tracker, not a support boat, to guide him along the way.
The grueling test of endurance does have a purpose.
The bricks Dreyer pulled will be auctioned off to support the Habitat for Humanity and their mission to rebuild Michigan through affordable housing.