The Rio Cavernoso is a river in the state of Paraná in southern Brazil. The river's character is defined in part by infrastructure related to hydroelectric power generation, specifically the Barragem Pch Cavernoso and Barragem Pch Cavernoso II dams. These structures create impoundments that are noted as points of interest for paddlers, suggesting the river may offer a mix of flowing and still-water sections. A notable man-made feature along the river is a cement bridge, which provides a distinct visual landmark. For trip planning, dedicated paddling resources list access points, weather conditions, and planning tools specifically for these dam areas, indicating they serve as practical launch or take-out locations. The surrounding region of Paraná is known for its diverse landscapes, which can include forested areas and rolling terrain, contributing to the river's scenic backdrop. Paddlers should be aware of the presence of the dams, as they represent significant hazards and require careful navigation and portaging; the operational status of these structures could influence water levels and flow patterns. The river's name, "Cavernoso," which translates to "cavernous" or "full of caves," hints at a potential geological character. General paddling considerations for southern Brazil apply, with water levels and conditions varying seasonally, typically with higher flows during the wetter summer months.