We had heard about the merging of the Rio Negro,a river with dark(almost black colored ) water and the sandy-colored AmazonRiver(Rio Solimoes) just outside of Manaus but nothing could have prepared me for the sight of it from a sea plane that we took from our lodge on the Rio Negro, to Manaus.
For 3.7 miles ,the river’s waters run side by side without mixing .This phenomenon is due to the differences in temperature, speed and water density of the two rivers. The Rio Negro flows at near 1.1 miles per hour at a temperature of 82.4 degrees(28°c), while the Rio Solimões flows between 2-3 miles per hour a temperature of 71.6 degrees(22 c).
We also noticed that there are a lot of places where the convergence is depicted with tile work. This is at the Opera House in Manaus.