Once a ranch ravaged by grazing, Rincón del Socorro is now a 30,000-acre wildlife refuge and eco-retreat in Argentina's northeastern Corrientes province. Opened in 2004, it owes its makeover to the Conservation Land Trust, founded by Doug Tompkins, former owner of The North Face, and is now a magnet for solitude seekers and wildlife watchers. Lodgings are spread throughout three restored bungalows and El Casco, the main house, built in 1896. El Casco has six vast rooms with high beamed-ceilings and plush beds, a cozy, well-stocked library, and a screened veranda perfect for afternoon tea and chipas, a bread made from cassava. Cuisine is excellent and locally inspired, including produce from the ranch’s organic gardens.