Thursday, Aug 27, 2020, 4:16 pm

By:Tony Williams

#6 Maderia River - 2020 Miles

In South America, the Madeira River is the major waterway measuring 2020 miles long. It is the biggest contributor to the Amazon River, and runs mainly along flat marshland. Calm waters and views for miles, this river is serene and tranquil. The long river ride takes you through beautiful country.