We booked our Tuscan wine tour through Italy and Wine. They have 6 Tuscan wine tours to choose from, as well as a truffle hunting tour and some wine tastings in Florence. We went on the Castle and Chianti Wine Tour and it was fabulous. I gave the full details of the trip in my Tuscany blog but suffice it to say, the tour was one of the highlights of our entire trip. The booking process was easy, the tour guide friendly and informative, the wineries well chosen, and the overall experience fantastic. (Note: this is obviously an adult activity and not for children, although I think my kids would have loved visiting the castle and estate.)