Linville Caverns - North Carolina's only show caverns. Open daily March thru November, Dec.-Jan.-Feb. weekends only. Courteous, experienced guides, outstanding gift shop. Located on US 221 between Linville and Marion, just 4 miles south of the Parkway-Exit Parkway at Milepost 317.4. Turn left on US 221 toward Linville Falls and Marion. www.linvillecaverns.com  Email: info@linvillecaverns.com (800) 419-0540.