Coombsville · Napa Valley
Visit Porter Family Vineyards with a Private Chauffeur
A family winery built 50 feet underground inside a hill in Coombsville, hosting one group at a time in its 17,000-square-foot cave, and a suggested six-hour day of tasting around it.
Book a Six-Hour Wine Tour
About the Winery
Porter Family Vineyards began as a dream shared by Tom and Beverly Porter. After buying land in Napa Valley's Coombsville AVA, they spent years studying the hillsides and the seasons before deciding how to farm it, drawing on Tom's scientific background and their shared love of nature. The family makes limited-production Bordeaux varietals.
To keep the landscape intact, the Porters built their winery inside a hill in the middle of the vineyard, about 50 feet underground. The cave is 515 feet long and covers 17,000 square feet, with fermentation bays, an in-cave wine library and a gravity-flow crush pad alongside. During construction the crew found fossilized sandpiper footprints, which now appear on every bottle.
Vines still grow on top of the hill, and the only sign of the winery is its two entrances. Tastings are private and by appointment, held inside the cave for one group at a time. Visits are arranged by phone or email; we make the request on your behalf and confirm the format and any fee.
Tasting Fees
Porter Family Vineyards does not publish a tasting fee. Any private visit and its cost are confirmed by the winery when the appointment is made.
Tasting fees as of September 2026. Wineries set and collect their own fees, and they change from time to time.
At a Glance
Location
1189 Green Valley Road, Napa
AVA
Coombsville
Visiting
By appointment or private request only, one group at a time, arranged by phone or email. We arrange it on your behalf.
Known For
Limited-production Bordeaux varietals from Coombsville
Founded
Founded by Tom and Beverly Porter
Good to Know
Visits are private, one group at a time, so book well ahead. Ages, group size and pet policy are confirmed when the visit is arranged.
A Suggested Six-Hour Day
Pickup at 10:00 a.m. from a nearby hotel such as Milliken Creek Inn or Andaz Napa.
10:00 · Pickup at Milliken Creek Inn or Andaz Napa
Milliken Creek Inn, on the Napa River off the Silverado Trail, and Andaz Napa, in downtown Napa, are each about 12 minutes from the estate. The day below fits a six-hour tour, and extra time can be added by the hour.
10:15 · Porter Family Vineyards
A private tasting inside the underground cave, one group at a time, by appointment. We plan about an hour; the format and any fee are confirmed by the winery.
11:45 · Mayacamas Vineyards
About 30 minutes away. A Mount Veeder estate around a stone winery built in 1889 from rocks gathered on the property, with vineyards at about 1,800 to 2,200 feet and views from the mountaintop. The Classic estate tour and tasting is $135, about 60 minutes. Open daily by prepaid reservation.
1:10 · Lunch at Bistro Don Giovanni
About 25 minutes away. Lunch at Bistro Don Giovanni, an Italian restaurant among the vineyards on Howard Lane, with a menu drawn from its own culinary garden, open daily from 11:30 a.m. Prefer a picnic? We can arrange a catered picnic at a winery that allows one; the cost is quoted when you book.
2:25 · Baldacci Family Vineyards
About 10 minutes away. A family-owned winery in the Stags Leap District with its own wine caves. The Taste of Napa Valley flight is $85, about 75 minutes; the Private Taste of Napa Valley with Cave Tour is $125, about 90 minutes. By reservation, daily 10 a.m. to 4 p.m.
3:40 · Back to your hotel
Back by about 3:55 p.m., within six hours of pickup.
About $220 per person in tasting fees for Mayacamas and Baldacci ($260 with the Baldacci cave tour), paid directly to each winery, plus any fee Porter sets for a private visit.
Three wineries is the right pace for a day of serious tasting. The fourth stop is there if the day allows.
Every tour is custom. This day is a starting point: your chauffeur will shape it around what matters to you, and we plan multi-day tours for guests who want to see more of wine country.
Your Vehicle & Six-Hour Tour Rates
Up to 6 guests
Elite Luxury SUV
Lincoln Navigator or Cadillac Escalade
From $750
Six-hour wine tour, plus 20% gratuity. Additional hours $125 each.
Up to 9 guests
Jet Sprinter or Executive Luxury Van
Captain's chairs and room to spread out
From $1,350
Six-hour wine tour, plus 20% gratuity. Additional hours $225 each.
Larger groups travel in more than one vehicle, and we plan the winery appointments around your group, since many wineries limit groups to 6 to 8 guests. Tasting fees are separate and paid directly to each winery. Every tour starts with six hours; add time by the hour when you book.
Questions
Do I need a reservation at Porter Family Vineyards?
Yes. Tastings are private and by appointment only, arranged by phone or email. When you book a tour with us, your chauffeur makes the reservation for you.
How much is a tasting at Porter Family Vineyards?
Porter Family Vineyards does not publish a tasting fee; any fee is set by the winery when the appointment is made, as of September 2026.
What is the winery in the cave at Porter Family Vineyards?
The whole winery is built inside a hill, about 50 feet underground: 515 feet long and 17,000 square feet, with fermentation bays and a wine library.
Why is there a sandpiper on the Porter label?
Fossilized sandpiper footprints were found while the cave was being dug, and they now appear on every bottle.
Who owns Porter Family Vineyards?
Tom and Beverly Porter and their family.
How does booking a tour with Bien Chauffeured work?
Reserve a six-hour tour online, even if your plans are still taking shape. Your chauffeur will email you first to learn what matters to you, then build your itinerary and make the winery appointments. Extra hours can be added.
Reserve Your Tour Now, Plan the Details Later
Your plans don't need to be final to book. Reserve your six-hour tour online, and your chauffeur will email you first to learn what matters to you, then build your itinerary and make the winery appointments. Prefer to talk? Call our concierge at 888-291-2328.
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