Study visits are an underresearched phenomenon, particularly in the field of climate change adaptation. Drawing on interviews with key local stakeholders, this article investigates study visits organized by European municipal climate networks. The results of this exploratory research show that study visits about adaptation policies can (1) particularly stimulate conceptual learning, (2) increase the credibility of policies within municipal administrations, (3) be used as strategic instruments by mentor cities, (4) be more successful if the peer-cities are not too different (in terms of size, institutional context), and (5) under certain conditions, lead to policy adoption in a learning city. Future research needs to critically discuss the mass suitability of learning from frontrunner cities. Furthermore, a call is raised for more research and practical action on how to initiate and improve learning exchanges beyond the strict division between mentors and learners. Instead, the focus needs to be on mutual learning exchanges. [ABSTRACT FROM AUTHOR]