Enrique Marcarian/Reuters
On the lake's eastern shore, some 300 miles from Buenos Aires, the ruins of Villa Epecuén rise from the brackish water, bleached white by the salt and sun.
Three decades ago, the town was a thriving resort, home to nearly 2,000 people and more than 20,000 tourists a year who sought the village's therapeutic salt baths.
Now tourists are returning, but for a very different reason.