Existing plans for the development of the continental coast and the islands of the Peter the Great Bay suggest establish-ing of large economic clusters. The most important condition for achieving sustainable development of the emerging natu-ral-economic system is to implement spatial planning of coastal zones. The work is based on the information about the nat-ural complexes of the territory and water area, obtained through landscape approach. The territory of the Shkota Island and its submarine slopes were used as a key area for the study of the features of the spatial organization of landscapes of coastal geostructures. We used a complex of physiographic, geoecological, cartographic and statistical research methods. For ter-restrial landscapes, 49 observation points are described and 4 profiles are laid; for underwater landscapes 64 observation points are described and 18 profiles are laid. As a result, a unified structural-genetic classification of land and underwater landscapes is established, the landscapes are mapped, and zones of interaction between aerial and aquatic natural complex-es are identified. The results obtained are the basis for identifying priority types of coastal-marine environmental manage-ment, functional zoning and spatial planning.