During my journey through the Mekong delta in 2008 I spent a couple of days in the large city of Can Tho (Vietnam's fourth largest at 1,2 million inhabitants).
One of those days I made a long tour of some of the branches of the Mekong, passing through the large Cai Rang floating market, among other places.
Cai Rang, stretching for hundreds of metres, was mainly a meeting-place for larger boats delivering fruits and vegetables straight from the farms and plantations to local small-scale entrepreneurs, who would then sell the products in villages along the river.
This photo shows a load of mangoes being transferred from a wholesale trader's boat to a local retailer.
Later we proceeded to a smaller and more intimate floating market a fairly long distance from Can Tho, after which we turned back towards the city through narrow, muddy creeks. The tide was getting low and we actually broke the propeller when hitting the bottom of the creek. Eventually we got back to Can Tho hours later than expected, going very slowly with only half of the propeller.
But all is well that ends well.
A larger version can be seen here.
I have added two more photos from Cai Rang as workshops.