Current problems of waste disposal and behavior, being an integral part of preservation the beach cleanliness are not at high level of people’s awareness, which ultimately leads to high level of pollution and a large quantity of debris spewed by the sea. Unfortunately, the problem of the quantity of marine litter comes to the fore once the waste disrupts aesthetic appearance of the beaches and thus questions the choice of citizens and tourist visiting a particular beach. Throughout this masters thesis the contribution of the project "Blue Bag" is analyzed, which deals with the clearing of debris at accessible and less accessible beaches. The contribution was studied on the basis of a survey conducted with the residents of the island of Krk and regular tourists. Analyzed is the potential for advancing public promotion of the project which offers the motivation for preserving the cleanliness of the beaches. The ideas for posting on social networks are proposed as well as implementing appropriate school curricula.