Napa, CA
Vine Cliff Winery is situated on a 100‑acre estate along the Silverado Trail in Napa. The tour includes underground aging caves that contain 15,000 square feet of tunnels carved into the canyon rock, with a naturally maintained temperature of 60 °F. The caves also feature a 50‑by‑18‑by‑30‑foot function room that can accommodate up to fifty guests for events.