I did the all-day floating markets tour on Saturday and it was wonderful. It was a great chance to get out of Bangkok into the beautiful countryside and included a peaceful boat ride through some canals and even a free 20-minute Thai massage! Lots of great food was included and there was plenty of time to browse the markets and buy additional food. The only problem was that the sheer variety of food available at the markets was so overwhelming you would need several days to try it all.