Spain is leading the way in developing climate shelters as a permanent infrastructure solution to address the growing problem of extreme heat. These shelters, as highlighted in Nature Climate Change, are designed to offer a safe haven for the public during periods of intense heat, showcasing a comprehensive strategy that combines climate action, public health initiatives, and effective governance. This innovative initiative is backed by a coalition of Spanish governmental bodies and leading research institutions, including the Spanish Office for Climate Change and the Spanish Network of Cities for Climate, demonstrating a united dedication to tackling the impacts of climate change.