Frieda, our tour leader, was a delightful guide, energetic, enthusiastic, and knowledgeable. She was well known by the wineries, and we received substantial discounts on the wine we bought. Her bikes were in excellent condition and well-suited to the trip. The route was very pleasant, starting on a dedicated bike/walk path along a stream, and then heading into the vineyards in Sonoma. We visited two wineries, where we tasted excellent wines and had some great conversations with the employees. We preferred the wines at Pelligrini over those at Hook & Ladder, but tastes may differ. The tour started at 10:30 am and lasted four hours, as advertised. Since there wasn't a lunch stop, we wished we had heeded Frieda's advice about bringing some snacks.