The Tapajós River is a major waterway in Brazil, flowing through the northern part of the country. It is approximately 1,200 kilometers long and is a tributary of the Amazon River. The river is known for its clear blue waters and diverse ecosystems, making it an important habitat for various species of fish and wildlife. The Tapajós National Forest surrounds parts of the river, protecting its rich biodiversity. The region is home to several indigenous communities, who rely on the river for fishing and transportation. The Tapajós area is also significant for its natural beauty, attracting eco-tourism and research opportunities.