This research evaluates the impact of various business environmental factors on the flow of tourists from TTGR to TDR in Bangkok. It considers the Leiper's model to understand various aspects related to the tourism system. Factors such as economy, politics, and facilities affect the destination image of Bangkok. Pull factors like food, luxury hotels, beaches, and nightlife attract Australians, while push factors like language barrier and negative perception act as barriers. The assignment also discusses the decrease in Australian visitors to Thailand and the economic growth of the tourism industry.