Representatives from all 68 regions and municipalities selected by CLIMAAX gathered for the first in-person workshop, held at the CosmoCaixa – Science Museum in Barcelona on 10–11 June 2025. These territories, all beneficiaries of EU support and funding to develop regional and local adaptation and emergency response plans, have already begun conducting their climate risk assessments. The workshop provided a valuable platform to explore common challenges, highlight success stories, and foster knowledge sharing among regions committed to climate adaptation.