In this chapter, mobility and urbanization relationships in the Brugge and Oostende Study Areas are examined through observing their development over the last decade. A specific spatial framework is defined using human mobility and urbanisation criteria. Similarities observed are the slow pace of 'extensification' and increase of nature areas in the rings, and reduction of residential and industrial areas in the cores. Port activities are on the rise, while migration is more dynamic in the core with noteworthy seasonal tourism mobility. Differences include the further inland extension of core in Brugge, beach tourism dominating Oostende while Brugge is more a cultural destination. The flux of tourists, in particular ‘day tourism’, plays a crucial role in structuring mobility-urbanisation relationships in the region.