The City of Lyon is developing a permanent flagship site dedicated to ecological transition: a third place located at the Neyret site, focused on climate issues and resilience. Its opening is scheduled for September 2026. While awaiting the delivery of this space, the Climate Hall is already active through an ambitious “off-site” programme. This programme aims to promote climate education, raise awareness of sustainable mobility, support the energy transition, and engage citizens directly within local communities: schools, middle schools, neighborhoods, and community spaces across the city. The future site will be designed in this spirit, combining: adaptation to the effects of climate change, social and environmental innovation, awareness of mitigation challenges. It will host various organizations involved in ecological transition, fostering experimentation, cooperation, and concrete responses to local needs.