On February 20th, 2020, Amsterdam University of Applied Sciences, the Municipalities of Breda and Middelburg, GGD West-Brabant, the Province of East-Flanders and students from Middelburg and the Amsterdam held a working session on the topic of heat vulnerabilities. During this session, vulnerabilities of specific groups, places and routes were identified by the participants and priorities were assigned. The results of the session provide a valuable base for Cool Towns to build upon.