Poseidon Vineyard

Wines from the seaside. Maritime fogs roll across Poseidon Vineyard, blown in by cooling Pacific winds and burned away again by the generous California sun. The river swells with salty water at high tide. Here, on the lip of the San Francisco Bay, we've grown Chardonnay and Pinot Noir grapes to supply exceptional California wineries for over forty years. For more than a decade, we've been harvesting them to create our own wines, reinventing the traditional and emphasizing the unembellished taste of the fruit itself.

Vines by the Bay. Poseidon Vineyard lies at sea level, at the confluence of Carneros Creek and the Napa River. We've owned and farmed this vineyard from the time Nicholas Molnar planted the property in 1973, following his hunch that the region would produce great wines. Even after four decades of farming, this undulating, gravelly bayside terrain continues to inspire exploration and discovery.

21684 8th Street East, Suite 450
Sonoma, CA 95476
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707-255-4929 (phone)

Featured Wines

  • Chardonnay
  • Pinot Noir
  • Proprietary Red

Tasting Info

Our Tasting Room is located amidst the art-filled gardens of Cornerstone Sonoma. Come and enjoy your tasting on our deck or by our fireplace—and get to know the hand-crafted character of our single-vineyard wines.

Private tasting experiences are available in our tasting room, vineyard or cellar by appointment only. Please contact us at or by phone at 707-706-2020 to schedule your visit.

Open Daily 10am-5pm
Cornerstone Gardens | 23568 Arnold Dr. | Sonoma, CA 95476

Direct 707-706-2020 | Main 707-255-4929