Communication on the ship is vital, because only a properly managed crew with well-established interaction is able to effectively manage the ship. The crew members are closely related to each other, and their safety depends on their ability to understand each other. Maritime practice in the conditions of international voyages is one of the central among many factors inspiring cadets to develop communication skills as the main professional competencies. Analysis of the elements of professional self-organization of cadets upon return from international voyage helps to further improve professional language training, including courses brought in English.