The closest you'll come to witnessing Saigon on a Saturday morning (by the way, lots of local Vietnamese, being southern refugees, still call it 'Saigon') is the Vietnamese Farmers' Market. It is also known as the 'squat market' thanks to the ladies in non la (conical straw hats) squatting over their fresh, wonderful-smelling produce.
Jim West/Alamy
Vietnamese Farmers' Market
New Orleans