Nahuelito is a lake monster reporte to live in Nahuel Huapi Lake, Patagonia, Argentina. It has been described as a giant serpent or a huge hump, as well as a plesiosaur. Press coverage for the creature began in 1922, but reports of Nahuelito extend well into the nineteenth century. The Buenos Aires Zoo has been attempting to collect evidence on the cryptid since 1922, but no consequential evidence was found.