The Quebrada de Retamilla, also known locally as Quebrada de Berenguela, Quebrada de Paucata, or Río Tiliviche, is an intermittent watercourse located in the Tarapacá Region of Chile. This classification as an intermittent stream is the most critical characteristic for paddlers, indicating that it does not flow year-round and is highly dependent on seasonal rainfall. Its flow is unpredictable, and for significant periods, the channel may be dry or contain only isolated pools, making it unsuitable for reliable paddling trips. The waterway is approximately 20 kilometers in length. Specific access points for putting in or taking out, such as formal boat ramps, are not detailed, though general resources suggest seeking out fishing access points. Given its arid regional setting, facilities and amenities for paddlers are likely to be minimal or non-existent. The surrounding landscape and any notable sights are not described, nor are there details on water temperature, quality, or specific wildlife. No regulations explicitly restricting paddling were identified, but the fundamental constraint is its intermittent nature. Paddling here would be an expeditionary endeavor, feasible only during rare and brief periods of significant flow following rain events in the Andes, requiring extensive local knowledge and self-sufficiency.