Each year my wife and I spend 2-3 months in different parts of Europe at during various seasons of the year. When our visits correspond to harvest time we have participated in harvesting grapes at wineries/vineyards. The last such experience was in 2015 in a wonderful winery in Alsace near Strasbourg. This year we will spend September/October in Florence. Are there any Tuscan wineries that offer single-day opportunities to assist with the harvest? We don't have a car but are very experienced using all types of local transportation. Thanks in advance for your help!