Rethymno is the third largest municipality of Crete with 63,000 habitants. It accommodates more than half a million tourists and attracts more than 1.5 million visitors on day tours and cruises annually. Therefore, the municipality is building up an integrated approach to face the rising challenges of both growing sectors: mobility and tourism. Rethymno has been a member of the Covenant of Mayors since 2011 and sustainable mobility is one of the strategic pillars of the Municipal SEAP. Rethymno is also involved in the European Reference Framework for Sustainable Cities.