Cerro Castillo National Park
Just 64 km (40 miles) south of Coyhaique, this national park is home to one of the most beautiful mountain chains in the region, crowned majestically by the rugged Cerro Castillo. Glacier runoff fills the lakes below the mountain, and the reserve is also home to several species of deer, puma, and guanaco. Cerro Castillo could be called one of the best hikes in Patagonia, but it gets only a tiny percent of visitors compared with its more popular counterpart to the south, Torres del Paine. One excellent hiking route begins at Las Horquetas Grandes, 8 km (5 miles) south of the park entrance. From there, go along La Lima River until Laguna Cerro Castillo, where you can begin your walk around the peak, and then head toward the nearby village of Villa Cerro Castillo. There is bus service from Coyhaique, but it's better to come here in your own rented vehicle. It's also preferable to hike with a guide, as trails are not always clearly marked. Senderos Patagonia (aysensenderospatagonia.com, 9/6224–4725) offers several options for both day hikes and multiday expeditions, as well as horseback rides through the park.