Developed methodology is applied to the problem of mapping of marine meadows in the Slovenian sea. Effective mapping of marine meadows is a very topical issue, since the directive of the European Union provides for cyclically monitoring of the prevalence of marine meadows. We processed hydrographic data using our developed methodology and mapped seabed types for the entire Slovenian coast. We found 36 large marine meadows and confirmed the presence of every marine meadow by underwater video method. The results are presented in 3D geographic information system. The successful application in the real domain confirms the practical applicability of our methodology and shows that the acoustic classification of the seabed with multibeam sonar acoustic data has great potential in seabed research.<\/p>\n