The Ribeirão dos Negros is a small watercourse in the state of São Paulo, Brazil, with a recorded length of 428 meters. It flows through the municipality of Descalvado. The primary access point for visitors is via the Cachoeira da Alegria trail, a 7.6-kilometer loop trail near Descalvado that is generally considered moderately challenging. This trail provides access to the water body and its associated waterfall. The area offers a natural setting for outdoor activities, with the trail itself being the main feature for exploration. The water body's short length and its location within a trail network suggest it is more suited for a brief visit or a stop as part of a hiking excursion rather than for extended paddling journeys. There is no specific information available regarding formal put-in or take-out points for boats, major paddling hazards, seasonal water temperatures, water quality, facilities for paddlers, or any regulations specifically governing paddling on this waterway.