Martuwarra the Fitzroy River, is a living entity encompassing law, values, ethics and virtues who has laid the foundation for learning and self-regulation. Martuwarra foster peace, harmony and balance within a water system covering 93,829 square kilometres of the Western Australian Kimberley region. However, climate uncertainty as part of the unfolding metacrisis demonstrates the limitations of decades of colonial invasive development in the Kimberley. In this paper the authors illustrate Traditional Owner water knowledge, science and lived experiences as managers of the catchment from the beginning of time. Traditional Owner knowledge and practices, fine-tuned over thousands of years, carry water governance and management through First Law, the law of the land and not man. The authors advocate for this ancient knowledge to be learned by fellow citizens in the region, governments, industries and other parts of Australia, as it is essential to modernity. They propose a bicultural and bioregional governance model to create a better future for the greater good of all.
