More mainland investors are finding their way to wine country in California's Napa Valley, as the Chinese are buying not only bottles of wine but vineyards as well.

"The Chinese presence in Napa will explode in the next five years," predicted Charles Kimball, owner of Chinese Napa Tours, which offers Mandarin translators. "This is only the beginning of the influx."

Napa Valley, located north of San Francisco, is considered one of the premier wine regions in the world and according to Kimball, four vineyards in the area have Chinese owners.