Damnoen Saduak Floating Market ตลาดน้ำดำเนินสะดวก

Shopping on the canal.... tourist trap. You can't run....

There are countless floating markets throughout the country, many within a couple of hours of the capital. The colorfully clad merchants at these lively markets paddle along congested canals in sturdy canoes laden with fresh fruit and vegetables to sell to shoppers on the banks. There is lots of chatter and activity – bargaining is common – that’s all part of the fun -- but don’t expect to get the price down more than a few baht.

The most famous of the floating markets is Damnoen Saduak, about 100 kilometers southwest of Bangkok. This buzzing market is at its best in the early morning before the crowds arrive and the heat of the day builds up
http://www.bangkok.com/beyond-the-city/damnoensaduak.htm