Indonesia is located within the Ring of Fire, making it highly vulnerable to various natural disasters, such as earthquakes, tsunamis, and volcanic eruptions. However, this high disaster potential is not yet fully accompanied by adequate student knowledge and understanding of disaster phenomena and appropriate mitigation actions. This study aims to develop Virtual Reality Based on Indigenous Knowledge (VIR-GO) as an educational medium for natural disaster mitigation in science learning for junior high school students. The research employed the Hannafin and Peck development model, which consists of three phases: needs assessment, design, and development and implementation. The needs assessment phase involved 83 junior high school students in Banten Province. The design phase resulted in the creation of a coastal virtual environment, disaster simulation scenarios, risk exploration activities, and the integration of Baduy indigenous wisdom. The development phase was conducted through validation testing with 5 media and science education experts, while the practicality test involved 60 student respondents from junior high schools in Banten Province. The results revealed that VIR-GO achieved a feasibility score of 94.9%, categorized as "highly valid," and a practicality score of 90.33%, categorized as "highly practical." VIR-GO holds strong potential as a visual, immersive, and contextual instructional medium that integrates science concepts, disaster mitigation education, the environment, and local culture.