Opus One

Visits run by appointment every day, 10am to 3:30pm. The winery is closed on New Year's Day, 5–9 January, Easter Sunday, 20–24 April, Thanksgiving, Christmas Eve and Christmas Day. Each vintage is released on 1 October, so the wine poured in the tasting room changes over in autumn. The 2022 harvest ran from 24 August to 26 September.

Book through reservations.opusonewinery.com. Online booking is capped at four guests; larger parties go through (707) 944-9442. Payment is taken in full at booking and becomes nonrefundable 48 hours ahead, or 14 days ahead for Art of the Table. Nobody under 21 is admitted anywhere on the grounds, including infants and children. No pets except service animals, and no outside food or drink. The estate publishes nothing about step-free access — ring the winery about access needs.

The address is 7900 Saint Helena Highway, Oakville, California 94562 — on Highway 29 between Yountville and Rutherford, a short drive from Robert Mondavi Winery. The approach changed in 2026: the main driveway reopened to visitors after the north and south berms and the arrival courtyard were rebuilt with the landscape architects Reed Hilderbrand.