Day seven of the Paraguay River Expedition, downstream to a point just north of Puerto Risso, 4 September 2026. A water sample and a swim at the confluence of the Río Apa—where the Brazilian border leaves the Paraguay River—and a stop at Kamba Hópo. Karina Garcete, Nicole Martínez and Pauli Serrano joined the team. The Jaguar Rivers Initiative is an alliance of Rewilding Argentina, Fundación Moisés Bertoni (Paraguay), Nativa (Bolivia) and Onçafari (Brazil). Expedition team: Natalia Rodríguez, Yamila Barasch, Sofía Heinonen, Sebastián Navajas, Paola Bocardo, Stephanie Simioni, Karina Garcete, Nicole Martínez, Pauli Serrano, and Henry Maillet.