This project advocates sustainable recovery by local communities coexisting with nature in the regeneration of tidelands and lowland wetlands, rather than by conventional approaches of building gigantic tidal breakwaters or by large-scale land uplifting. This project targets the Kudan district in Kesennuma City where the tideland submerged and disappeared, and the residential area became a salt wetland. Monitoring of environments of forests, rivers and wetlands, assessment of biodiversity, analysis of the value of using them as a field site for forest/community/sea environmental education programs, and the creation of environmental education programs and organizations to run them. In addition, analyze traditional uses of the land, supply information to the disaster-affected community and build consensus about relocating communities to higher ground and turning the post-relocation sites into natural parks. Furthermore, we will send reports of this project out into the world to encourage the process of creating areas that do not depend on tidal barriers and to achieve the regeneration of tidal land and wetland conservation.