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Austin's warm climate offers plenty of sunshine, while the open, green spaces don't provide any excuse for staying indoors. Head over to Lions Municipal Golf Course for an inexpensive round. Wander through the 351-acre Zilker Metropolitan Park until you find Barton Springs Pool, a 3-acre water source fed by underground springs that keep its temperature around 68 degrees all year long. Or, to escape the city, head for the nearby Hill Country.