This study selected the subjects involved in marine sports in southeast area in 2008 using Quota Sampling of Non Probability Sampling. The author visited local governments of Mokpo and Yeosu to investigate the current status and reports of marine sports and sum up the developmental plans to find possibility of further development. We selected 40 subjects involved in marine sports in Mokpo and Yeosu (public servants in charge of them, sea police and marine sports businessmen) and interviewed them intensively. Based on the intensive analysis of the staff in Mokpo city, field investigation and bibliographical analyses, we should approach to the specialization of marine sports it step-by-step. First, we should develop seasonless sports programs as they are centered upon summer and integrated programs in which marine sports, cultural and marine resources are combined. Second, we should develop facilities that can accept variable marine sports activities. Mokpo city should develop marina facilities, a bonder and coastwise cruise program in a gradual basis, followed by development of international cruises, through which the city becomes famous tourist attractions. Third, we should develop programs in which culture and tourism of neighboring areas such as Muan, Shinan, Haename, Jindo, and Yeongam including Muan International Airport, Shinan suspension bridge, Haenam J Project and Yeongam F1 Project are connected. Yeosu city should approach to the specialization for activation of marine sports through intensive analyses, field investigation and bibliographical analyses in the following viewpoints: First, the city should develop its own thematic tourism programs and organized programs of marine sports and improve their commercial values by building infrastructures for marine sports and tourism. Second, the city should develop programs that can reinforce its role as an advance base of marine sports in the 21st century. build infrastructures for yacht, windsurfing and skin scuba, secure basic marine facilities and equipment and mitigate strict applications of the law. Third, the city should attract international marine sports competitions, a variety of national competitions, and national and international yacht competitions and pay more attention to their promotion.