Article 7.1 of the Paris Agreement establishes that parties should aim at enhancing adaptive capacity, strengthening resilience, and reducing vulnerability to climate change. While many climate hazards and vulnerabilities are beyond territorial control, a readiness to withstand and recover from them must be delivered locally. This chapter discusses climate-related vulnerability, adaptation, and resilience of the Greater Bay Area of China (GBA), an area that has been identified by the Chinese government as an engine of economic development but which has historically been vulnerable to flooding. After providing a contextual introduction to the GBA project, the chapter reviews key studies on past, current, and future climate trends focusing on meteorological, climatological, hydrological, and geophysical hazards. It then surveys adaptation policies and plans already implemented in GBA cities to assess what works and what does not and where the gaps are. Finally, the discussion focuses on the drivers and barriers for the uptake of technology for flood prevention and for the deployment of emergency responses. The aim of this discussion is to identify the opportunities and risks of technology in building future-ready local skills and citizen engagement for climate resilience. Given the ambitious plans for the GBA to contribute to the economic development of China, existing and projected vulnerabilities to climate hazards and their potential impact on the developed environment and physical infrastructure, business and industry, energy supply, financial services, human health, water resources, and biodiversity may not only hamper GBA plans but also put its businesses and citizens at risk. Technological innovation diminishes this vulnerability, but drivers and barriers to its uptake must be either identified and enhanced or removed accordingly.