This Christopher Swain is a brave guy.   He’s been swimming in polluted waters to help improve matters.  Now he’s swimming down the Atlantic coast.  As it says on his ToxTour website:

Ordinary Guy Seeks Healthy World
On April 22, 2009, Christopher Swain began a 1000+ mile swim down the Atlantic coast to Washington, DC.
Along the way, he will help students in over 2,000 classrooms launch projects designed to improve the health of our ocean planet.