The ethnographic approach analyzed the organization of cultural activities of the Boka Navy with its headquarters in Kotor. Central observation and participation in St. Tripun procession on February 9th 2020, and interviewing members of the Tivat branch (fraternity) Boka Navy, provided a framework for a dynamic picture of Navy society as it is today. The formation time of the Navy, which is associated with the arrival of St. Tripun relics in 809 in the town of Kotor is the cause of today´s unbreakable connection which is manifested in the very honoring during St. Tripun procession. St. Tripun kolo dance, danced by Boka sailors, is one of the most beautiful city kolo dances of medieval Europe. All members, regardless of rank and role in the procession, show unity in participating and working in their fraternities. Besides specific uniforms, both for sailors and officers, and the famous kolo dance, the Boka Navy abounds in other rich features that need to be placed under the auspices of UNESCO protection. It is primarily about preserving a tradition of Croats from Boka that has its own historical course, its own rules described in the statutes: from a professional association to a cultural society. From the first preserved statute in 1463 to the one that comes after the democratic changes and brings a new freshness of freedom, and returns the original meaning to tradition. Ethnographic methods were used to analyze and highlight the main determinants of the Boka Navy in the context of intangible heritage and identity determinants.