San Luis Obispo County is the gateway to Paso Robles Wine Country, which numbers over 200 wineries, many of them small boutique vineyards. Zinfandel is the area's heritage grape varietal, although the Paso Robles AVA has earned acclaim for its Bordeaux varieties, particularly the Cabernet Sauvignon, as well as a number of innovative Paso Robles blends. Wine tourism is popular for California locals as well as visitors from further afield, who come to enjoy the vineyards along with other area attractions such as Morro Bay, Hearst Castle and the scenic drive up the Pacific Coast Highway. There was a total of $794 million of ranches, farms, hunting land and other rural land and acreage for sale in California's San Luis Obispo County recently on Land.com. The total of all San Luis Obispo County land for sale was almost 100,000 acres. San Luis Obispo County ranks 11th in the state for the combined amount of land currently advertised for sale. Of all locations in San Luis Obispo County with farms, ranches, hunting land and other land for sale, Paso Robles featured the most land for sale. Based on its natural assets, tourism and recreation contribute significant revenue toward San Luis Obispo County's overall GDP. San Luis Obispo County is the 18th largest county (3,615 square miles) in California. It's located in the Central Coast California region of California.