“Our back-of-the-envelope calculations suggested that, with a little creativity, we could possibly stretch our few remaining pesos over thirty-one days and four countries. During the next few weeks, we would define our general path: south to Río Gallegos, west to Mt. Fitz Roy, south to Torres del Paine, Chile and eventually to Punta Arenas, north up the Chilean coast to Santiago and ultimately on to Cusco, Peru and west to the ruins at Machu Picchu. At that point, we would go our separate ways.”