In Wine Country, a cave is more than a cave: It's a magical place where wine quietly chills out to age gracefully.

Despite the ubiquity of world-class wine producers in Napa and Sonoma, wine caves—especially those that can be visited by the tasting public—are relatively few and far between. Head underground for a unique look at behind-the-scenes wine production and a taste from a classically aged barrel at these wineries (one of them even has a waterfall!).

Pine Ridge Vineyards

The centerpiece of Pine Ridge Vineyards' network of hillside caves is Cellar 47, an elegant tasting venue decorated with soft lighting and inviting furnishings. In their 90-minute experience, wine educators take guests underground for a tasting of five estate cabernet sauvignons—including the Pine Ridge Vineyards flagship wine, Fortis—in one of Napa Valley's best cave tours ($95/person or $76/members, reservations required). // 5901 Silverado Trail (Napa), pineridgevineyards.com

Schramsberg Vineyards

If you're considering popping the question to your S.O., a candlelit sparkling wine tasting in the historic, 125-year-old caves at Schramsberg, in the rolling hills above Calistoga, would be a golden opportunity. Here you'll learn the winery's Old World ways of producing bubbly in the methode champenoise, and may even be invited to try your hand at riddling the aging bottles. Tours are limited to just four guests, guaranteeing that each tasting is a perfectly intimate experience—go for the all sparkling experience ($60/person) or team three sparklers with three red wines from Davies Vineyards wines ($70/person). Don't miss out on the lesser known, toastier (and more expensive) J. Schram sparklers. Reservations are a must. // 1400 Schramsberg Rd. (Calistoga), schramsberg.com

Jarvis Estate

If there were an award for most spectacular wine cave, Jarvis Estate would be hard to beat. The 45,000 square foot cave, dug in a curved parabola shape, is accented with cast bronze doors and wall sconces, arched alcoves, and fiber optic chandeliers. In the center, a natural underground water source has been harnessed into a cascading waterfall and stream. Following a tour of the underground operation, guests are seated in the tasting chamber to sample six of Jarvis' estate and reserve wines. Reservations ($150/person and $175/person for groups of 12+) are required. // 2970 Monticello Rd (Napa), jarviswines.com

Vine Cliff Winery

Vine Cliff has more than one tasting room in Napa County, but it's only at their historic estate on Silverado Trail where you'll get to travel underground to taste wines like the 2018 Oakville Estate Cabernet Sauvignon, a combination of plum and vanilla with scents of black cherry, licorice, violets, and crushed lavender. In Vine Cliff's 90-minute Legacy Estate Wasting Experience, guests tour the 100-acre property where winemaking began in the 1870 and the 15,000 square foot wine caves before tasting what's on offer along with a pairing of artisan cheeses ($85/person, reservations required). // 7400 Silverado Trail (Napa), vinecliff.com

Thomas George Estates

A little over a decade ago, Russian River Valley wine pioneer Davis Bynum converted a hop kiln from the 1920s into a state-of-the-art wine making facility. In 2010, an 8,000 square foot wine cave was added as a barrel-aging and tasting/event space. In their luxurious Single Vineyard Tasting, guests get a taste of six wines such as the savory and classic 2016 Pinot Noir Baker Ridge Estate. The experience ends at the tasting table for an intimate underground pizza pairing ($60/person, reservations required. // 8075 Westside Rd (Healdsburg), thomasgeorgeestates.com

Gundlach Bundschu Winery

Gundlach Bundschu was making wine for a century before they added their French-inspired wine caves in the 1990s. Guests may choose between the Vineyard & Cave walking tour ($75/person) or the Pinzgauer excursion ($105/person) in a cool Swiss Army transport vehicle that will take you through the historic vineyards. You'll sample five to seven estate wines on the Rhinefarm Experience, including the Vintage Reserve Cabernet Sauvignon along with seasonal snacks ($50/person). If the process of winemaking interests you as much as its taste, opt for the walking tour that runs 11am to 2pm daily ($65/person, plus 18 percent gratuity). // Reservations are required; 2000 Denmark St (Sonoma), gunbun.com

Enter the 7,000 square foot cave beneath Bella's historic Lily Hill vineyards for a tasting of wines like the crisp and refreshing 2020 Ru's Farm Sauvignon Blanc Growler, Fridays through Sundays ($30/person). Go a little more in depth with a private lawn tasting ($30), which guides guests through both the vineyards and caves and offers tastings among the aging barrels. // 9711 W Dry Creek Rd (Healdsburg), bellawinery.com

Benziger Family Winery

Benziger is a two-time winner of Wine Enthusiast's people's choice award for the best winery tour—and the people were not wrong. In the Tribute Estate Tour and Tasting ($75/person), guests get a behind-the-scenes glimpse of the estate's biodynamically farmed vineyards, winery and wine caves. The tour ends with a seated tasting of wines in a semi-private underground room. Walk-ins are welcome in the tasting room (10am to 5pm Monday through Thursday) and dogs can join too (just make sure to bring a leash) // 1883 London Ranch Rd (Glen Ellen), benziger.com

Del Dotto Winery

Del Dotto has not one but three wine caves where you can experience the family's wide range of vintages grown in regions including Rutherford, Oakville, St. Helena, Howell Mountain, and Fort Ross-Seaview on the Sonoma Coast. The newest of the three locations is Piazza Del Dotto in Napa, which sits on eight-and-a-half acres of cabernet sauvignon vines as well as vegetable gardens and the opportunity to spot turkeys, peacocks, pheasants and doves. The Piazza is your exclusive chance to team Del Dotto's signature Cave Experience & Barrel Tasting ($120/person with reservation) with a pairing of foodie delicacies ($225/person, Thursday through Saturday). Meanwhile at the St. Helena estate, which opened in 2007, the caves are far more opulent with chandeliers that would be at home in a Medieval castle. History buffs, though, may prefer to visit Del Dotto's historic property dating back to 1885 on Napa's Atlas Peak Road. Restored in the 1990s to house red wines for aging, this cave is celebrating its post-pandemic reopening on August 5th for members and on August 12th to the public. // 1055 Atlas Peak Rd (Napa), 1445 St. Helena Hwy (St. Helena), and 7466 St. Helena Hwy (Napa);deldottovineyards.com