They originate from a time when water transport played an important role in daily life.
All these countries are located either on islands or on wet lowlands with broad river valleys.
Located in tropical climate, this region was thick jungles prior to human development.
Damnoen Saduak Floating Market, near Bangkok.
That way they could quickly sell their products and return back to their home.
Floating markets are also a big tourist draw.
The market opens in the early morning and closes about an hour before noon.
It is an evening floating market but some stalls are opened at noon too.
The Cai Be floating market in another well-known floating markets in the western region of southern Vietnam.
A relatively unknown floating market is in the gorgeous Dal Lake, in Srinagar, India.
Its strictly a vegetable market with all produces grown in farmlands along the lake.
The market opens in the early morning hours.
Damnoen Saduak Floating Market.
Photo credit:Dennis Jarvis/Flickr
Damnoen Saduak Floating Market.
Photo credit:Colin Tsoi/Flickr
Amphawa Floating Market, near Bangkok.
Photo credit:Pierre Wolfer/Flickr
Damnoen Saduak Floating Market.
Photo credit:Xiquinho Silva/Flickr
Floating Market outside Bangkok.
Photo credit:Georgie Pauwels/Flickr
Floating Market outside Bangkok.
Photo credit:Jabiz Raisdana/Flickr
Amphawa Floating Market, near Bangkok.
Photo credit:mkismkismk/Flickr
Floating Market outside Bangkok.
Photo credit:ehpien/Flickr
Damnoen Saduak Floating Market, near Bangkok.
Photo credit:Colin Tsoi/Flickr
Phung Hiep Floating Market, Vietnam.
Photo credit:Maciej Dakowicz/Flickr
Sources:Thailand Explorer/Bangkok.com/Wikipedia