My friends and I signed up for the wine trolley last Sunday. Even though the trolley was not available, we had a great time. In fact, I was glad we had an air conditioned van, instead! The tour started at Ravenswood where we had a personal guided tour of the organic vineyards (with tasting throughout). As great as the winery tours were, and of course, the tasting, I believe the tour guide/van driver is what made the experience. She was friendly, knowledgable and accomodating. She even brought a cooler with water and encouraged us to stay hydrated. This ensured that there was no unfortuate side effect from all of that wine! I recommend it this tour and would definitely do this again.