A problem I observed was that the water in the river was dirty. This is probably due to the fact that there are people who are living along the river and they pour any waste into the river and the problem increases as the population increases.
People stay near the river as they were born there and their jobs requires them to travel along the river. The river is good for travelling and transporting goods.
It needs to have outstanding cultural or natural value.. It is a mangrove which cover 40,000 hectares of mangrove and are referred to as a "green lung" as they absorb carbon dioxide from Ho Chi Minh City
The Singapore Botanical Garden. It contains many different locations that each hold many different plants and flowers giving the place a lot of environmental value.
The wet market in Vietnam sells live food and is more crowded than the ones in Singapore. They are also larger and sell a wider variety of items. This is probably due to the fact that there are less supermarkets here so wet markets are the main place you get your groceries from.