Marinas must meet the increasingly complex requirements and needs of users with their services, with the assumption that the satisfaction of boaters is one of the important factors in the competitiveness of marinas.The aim of the research is to find out which marina factors have the greatest potential to create pleasure/dissatisfaction of boaters, as well as what are the key factors when choosing a marina by sailors. It was assumed that the choice of marinas and the satisfaction of sailors depends on factors related to the marina's services in a broader context. It was important to take into account the category of marinas that is associated with socioeconomic differences among boaters. In the first phase, a reconnaissance survey was carried out, which includes the exploration of secondary sources. During the reconnaissance research, primary qualitative data were collected through conducting in-depth and/or group interviews with marina managers and users of marina services. In the second phase, the primary research was conducted using the examination method, where the research instrument is a highly structured survey questionnaire intended for boaters, with a focus on the factors of marina selection and satisfaction/dissatisfaction with the marina offer. To prove hypotheses in this study, nonparametric tests were used to test differences between groups, correlation and regression analysis, relevance and determinance analysis, asymmetry analysis of influences and multiple regression with dummy variables with the aim of impact asymmetry. All 3 hypotheses have been confirmed.