Keep in mind that the floating markets have some element of danger. With all those different sized boats floating around, it is somewhat inevitable that they will collide at times. Whilst normally it is just a gentle nudge, if you are standing up and not paying attention, you may well end up in the river!
For shopping on land, there are numerous supermarkets in Can Tho. Examples of these include Coopmart, located in Hoa Binh Street, Metro Hung Loi, which is at 91B, as well as Citymark, Maximark and Vinatex Plaza. The Can Tho main market at Cái Khế is quite a traditional, and very colourful, Vietnamese market, and is a great place to spend a few hours browsing around and checking out the items on sale. If you are wishing to purchase something, be sure to bargain to get a good price!