What are ecolabels, why are they useful, how can they be used – those are the questions answered by the desk study “Ecolabelling for tourism enterprises – What, why and how”. The report released by the Norwegian University of Science and Technology (NTNU) is directed to small and medium sized enterprises (SMEs) within, or connected to, the Natural Heritage Sites the Wadden Sea (DK, D, NL), Geiranger Fjord (NO), Wash & North Norfolk Coast (UK). The three areas are the pilot regions of the Interreg VB project “PROWAD LINK – Protect and Prosper”, which aims to unlock the potential of natural heritage areas as a driver for sustainable development and job growth.