The Rio Tartarugalzinho is a river in the state of Amapá, Brazil, flowing through a remote region approximately 230 kilometers from the state capital of Macapá. One notable route for paddlers is a long-distance point-to-point trail that begins near the town of Santana and extends through Porto Grande to Tartarugalzinho, covering a distance of 195.3 miles. This trail is accessible year-round, suggesting the river can be paddled in all seasons, though specific seasonal flow characteristics are not detailed. The region's environment is significant, as scientific studies have identified elevated mercury levels in the Tartarugalzinho area, linked to artisanal and small-scale gold mining activities. This indicates a potential water quality concern that paddlers should be aware of, though the specific impact on the river's general cleanliness for recreational use is not quantified. The area is characterized by its remoteness, with the municipality of Tartarugalzinho itself being a relatively recent establishment, dating from 1987. For trip planning, paddlers can find information on access points, boat ramps, and necessary facilities through dedicated paddling resources, which are essential for navigating this lengthy and isolated route. The trail's substantial length and point-to-point nature imply a multi-day expedition requiring careful logistical preparation.