Although coastal regions only amount to 7 % of the global oceans, their contribution to the global oceanic surface exchange of CO₂ is much greater. In this study, we gain detailed insight into how these coastal marine fluxes compare to CO₂ exchange from coastal land regions. Annually, the coastal marine exchanges are smaller than the total uptake of CO₂ from the land surfaces within the study area but comparable in size to terrestrial fluxes from individual land cover classes of the region.