Green economic development has become an increasingly vital trend in the global economy, promoting economic growth, efficient resource utilization, environmental protection, and social equity. It also presents a promising pathway for Vietnam's seas and islands, including Bach Long Vi island district, which faces resource depletion and climate change risks. In alignment with Hai Phong city's development direction, tourism is identified as one of the three key economic development orientations for the island district. This study utilizes desk review, investigation, survey, and SWOT analysis methods to propose a local experiential tourism model. The model emphasizes experiential tourism as a means to drive green economic development in Bach Long Vi district, representing a suitable solution to optimize the island district's advantages for sustainable growth while contributing to national defense and security in the Gulf of Tonkin region.