Puerto Natales is a small port on the Señoret Channel in Chile’s southern Patagonia. Population about 20,000. It’s the gateway to Torres del Paine National Park to the northwest, and the port for boats touring the Patagonian fjords. The Municipal Historical Museum in the city center exhibits artifacts from the region’s indigenous population. To the north is the vast Mylodon Cave, once inhabited by prehistoric, slothlike mylodons