The purpose of this study is to evaluate the feasibility of the new marine leisure ships. In order to achieve the research purpose, the cost and income were calculated based on the operating of other marine leisure ships, and the feasibility of the project was empirically analyzed. This study established a research model that applies the values derived by empirically analyzing ships with similar specifications, to the new marine leisure ships. We then calculated the cost-benefit analysis, net present value, and internal return, and evaluated the feasibility of the project based on this. As a result of the business feasibility analysis of investing in marine leisure ship, it was found that economic feasibility exists with a B/C of 1.042 and 1.049 for new and secondhand ships, respectively; however, considering the stability of the ship and the publicity and continuity of the business operation, it is recommended to invest in new ships compared to secondhand ships. The total benefit over the 10-year operating period using a social discount rate of 4.5% was evaluated to be about KRW 292.0 billion, which is higher than the total cost of KRW 256.6 billion. In conclusion, the profitability analysis showed that the B/C was 1.042, the NPV was KRW 193 billion, and the IRR was 2.1%, which indicates that profitability is weakly secured.

Given the technological innovations of the fourth industrial revolution, cutting-edge ICT technology has been applied in research on aids to navigation, and due to the emergence of new types of equipment and technological advancements, it is necessary to apply realistic standards to the designation of service lifetimes to aids to navigation facilities' equipment and components. In addition, it is necessary to prepare a legal basis for the effective operation of aids to navigation facilities' equipment and component. Therefore, in this paper, improvements in the designation of realistic service lifetimes are suggested by investigating the service life management and operation status of domestic and foreign aids to navigation, providing on-site surveys on the management status of aids to navigation facilities in Korea, and with a questionnaire survey to gather expert opinions.