AMAZONAS, BRAZIL - In the Brazilian Amazon, several natural phenomena are formed by the confluence of rivers, and the most famous of them is the Meeting of the Waters, where the Solimões and Negro rivers run side by side about 10 kilometers from the capital of Amazonas.

The waters flow alongside each other for roughly six kilometers without mixing, creating a striking visual divide between the two rivers. From this confluence, the mighty Amazon River is formed, eventually emptying into the Atlantic Ocean.

The contrast occurs because the Negro River has dark-colored, warmer waters (around 28°C) that flow more slowly, while the Solimões River carries muddy, cooler waters (around 22°C) with a faster current.

Differences in temperature, speed, density, and chemical composition explain this remarkable phenomenon. The natural spectacle can be observed on boat tours and is one of the main tourist attractions in Manaus.

In recent years, the phenomenon has been affected by severe droughts caused by climate change in the region—a topic expected to be discussed during COP30 in Belém this November.

amazonagency.news