Prof. Ranka Petrinović and Dr. Nikola Mandić visited Marina Dalmacija in Sukošan on the 23rd February 2017 to conduct a field research and to meet and interview Mr. Božidar Duka, the general manager of D-Marin Croatia (Dogus Group) operating Marina Dalmacija, as well as Marina Borik in Zadar and Marina Mandalina in Šibenik. Mr. Duka is also the vice-president of the Croatian Marinas Association. Marina Dalmacija is currently the largest marina in Croatia, with more than 1100 berths in the sea and 300 berths on land. This was a perfect occasion to investigate and learn about the practical intricacies of marina operating business, and the legal challenges the marina operators in Croatia are faced with on a daily bass. Especially valuable for our research were Mr. Duka's inputs regarding their experiences with the recent large investments on the maritime domain from the legal perspective. Cooperation with D-Marin as one of the leading marina operators in Croatia is of a great importance for the development of the DELICROMAR project.