We celebrated GIS Day 2025 with a vibrant program showcasing how geospatial technology is driving innovation in environmental research, climate resilience, and sustainable development. Participants engaged with hands-on demonstrations using Google Earth Engine, ArcGIS, QGIS, UAV platforms, and GPS tools, exploring real-world applications such as land-use change monitoring, drought analysis, flood mapping, and CMIP6 climate projections. Through interactive dashboards, high-resolution maps, and analytical models, the program highlighted how spatial intelligence is becoming essential for planning, decision-making, and understanding rapid environmental change. The event also created a strong platform for learning, collaboration, and community engagement. Students, researchers, and practitioners exchanged knowledge, explored thematic datasets, and discussed innovative ways to integrate GIS into ongoing projects and fieldwork. The energy and curiosity throughout the day reflected a growing commitment to using geospatial science as a catalyst for sustainable development. As we conclude this celebration, we reinforce our dedication to advancing GIS capacity and empowering the next generation of spatial thinkers.