River tubing — both inexpensive and family-friendly — has become a popular summer pastime in the United States, and USA TODAY 10Best is on the hunt for America's best tubing rivers.

A U.S. EPA report stated that 55% of U.S. rivers are in bad condition. View this beautiful interactive map for inspiration to protect these waterways.

The Pacific Northwest river basin in the United States is fed by two major rivers — the Columbia and the Snake — both of which originate in Canada.