This article explores the potential of geosystems as a conservation framework within a geopark. The Izu Peninsula Geopark in Japan is analyzed for this purpose. Key characteristics of the geosystems approach are evaluation of geodiversity, holistic appraisal of processes operating at large spatiotemporal dimensions, and emphasis on the underlying unity of different abiotic and biotic environments. However, geodiversity is a neutral descriptive term, and the geosystems approach needs active social participation to become fully functional. This article critically examines how geoconservation is grounded in praxis. An outline of the development of the concept along with related challenges and geotourism angles is followed by the case study. The Izu Peninsula Geopark is one of the largest and most diverse geoparks in Japan. But as the area is close to Tokyo, its geoheritage faces constant pressure from a large urban footprint. The geopark has developed a combination of multiple conservation strategies, but several challenges remain. This study identifies the lack of awareness among the population as the main threat to geodiversity and argues that those communities who have firsthand knowledge of geosystems need more representation in management. While a number of community-driven conservation practices and a rich traditional knowledge of the environment can be identified, these need to be integrated on a holistic platform to provide understanding about interrelationships between phenomena. It is concluded that the geosystems approach requires an optimum utilization of the social diversity and prioritization of the conservation agenda within the regional development and geotourism initiatives.