Sustainable Daisen is a Non-Profit Organisation (NPO) promoting sustainable practices to help ensure the survival of the endemic Japanese Giant Salamander, Andrias japonicas. This rare species is threatened by habitat destruction/modification, population fragmentation, hybridisation and climate change and listed as ‘vulnerable’ in the Red Data Book (published by the Japanese Ministry of the Environment). The heartland of Sustainable Daisen is the Nawa River Basin, on the foothills of Mt Daisen, close to the Sea of Japan. The unique breeding population of the Japanese Giant Salamander (JGS) found in the basin is facing extinction if business-as-usual continues. Water, and its cycling through land, air and sea, is the element most critical to the conservation of this aquatic species. It is also the key element in the long history of worship of Mt Daisen. Within this rich cultural setting a holistic approach to managing salamander habitat is being implemented, focusing on rivers, forests, farmland and villages. Sustainable Daisen has built an impressive team, website, and many productive collaborations including with the research community. This and other initiatives to save the JGS in the region have received national and international attention. It was my pleasure to meet Richard Pearce, the CEO of Sustainable Daisen, in Tottori Prefecture in May 2018. Since then our lives have been intertwined through our shared enthusiasm for nature, Shugendo and forging a sustainable future for our planet.