The Rio Urucu, located in Amazonas, Brazil, is a tributary of the Amazon River. It is a narrow river approximately 500 kilometers in length, offering a deep and authentic jungle kayaking experience far from crowded tourist areas. This setting provides a remote and immersive paddling environment. One notable feature along the river is the Iracema waterfall, which is the biggest waterfall on the Rio Urucu and can be visited during trips. The river is used for multi-day kayak tours, with one specific operator offering a four-day itinerary. This suggests the river is suitable for extended, self-supported adventures. Access to the river involves travel from Manaus, with one tour operator noting a journey of approximately two hours into the forest to reach the put-in. The river is also accessible via asphalt and dirt roads, with one source indicating the Urubu River is 100 kilometers from such a road network. Guided tours are available, ranging from single-day excursions to multi-day expeditions. The overall character is one of a remote Amazonian tributary, promising an adventure focused on natural immersion rather than developed amenities.