2023 World Jamboree is going to be held in Saemanguem area, the southwest part of the Korean Peninsula, which has been reclaimed by long seawall. Area for tourism and recreation will be used for the international event. The area under development still has land and lake together. The principal department planned land based camping site after reclamation of the most part of the lake. But considering the environment and sustainability, development of floating camping site can be a strong alternative. The proposed project of floating camping site mainly focused on considering the regional characteristics of the relevant area, eco-friendly design with natural environment rather than large scale of reclamation, securement of water space by water level control and design of various site plan alternatives, and facilities design with modular & prefabricated construction and easy removal possibility after the event. If the camping facilities would be built on the water, participants from all over the world could have very special camping experiences on water rather than in mountain as usual. Ideas of floating camping site design executed as term project in Kunsan National University will be presented.