Iron Horse is a beautiful, if slightly more commercial property. There's a lot on offer here, from pricey pours of bubbly, chardonnay and pinot noir to the oyster bar next to the tasting room. (And "room" is a relative term here—the tastings occur outside, which makes for a lovely setting with sweeping views, though it can get a bit cold.) If oysters aren't your thing, there's also bread and cheese, vinegars and olive oils for sale along with bottles. And if you go for a bottle or two, check out the limited edition, sparkling Ocean Reserve—Iron Horse has partnered with National Geographic, and $4 from each bottle goes toward Marine Protected Areas around the world.
How to visit: The tasting room is open seven days a week from 10am to 4:30pm, and no reservations are required. Five-wine flight tastings are are $20 per person, refunded with bottle purchase. Winery tours are by appointment only Monday through Friday at 10am, and cost $30 per person (including tasting).
In short: Big and beautiful; large crowds; tasty bubbles