The graduate thesis deals with the topic of maritime goods and also follows the historical development of maritime property in the Republic of Croatia as a common good. It explains the concept of maritime good and its division, after which the emphasis is on the process of determining the boundaries, disposal of seafarers and its protection and management. It also shows the problem of devastation of the maritime goods that is present because of inadequate legal regulations and the problem of financing projects on a naval asset that potential investors give up on investing. The paper deals with the subject of concession and its importance because it is the right to allow the use of seagoing goods and earnings are made. Historical presentation of concession development in the Republic of Croatia is presented. The types of concessions and the issuing procedure as well as the forms of concession concessions by the concessionaires are listed. Concessions are a very important institute because the private sector is involved in performing public services. In Croatia, the number of concessions increases year by year, and thus the positive effects provided by the institute itself.