So Chateau Élan may seem like an obvious choice but you probably didn't know they offer FREE guided winery tours every day. Reservations are not required. If your date doesn't know about this then you can win major points by making them feel like a VIP. During the tour you'll get to see the wine production room and weather permitting you will also be lead through the vineyard.
Upgrade to the Signature Tour & Tasting for just $30 per person (conditions apply) and enjoy six of Chateau Élan award winning wines in a reserved area of the tasting room.