“Protected areas” is the formal definition for the global network of conservation places, including marine and terrestrial reserves, which are overseen by the IUCN through instruments such as the Guidelines for Applying Protected Area Management Categories (Guidelines). In the long‐term conservation of nature, the Guidelines embed a nature–culture dualism, upon which the values of each are ascribed and weighted. This binary does not recognise relational values of Indigenous peoples to land or encompass worldviews beyond the restricted choice of the dualism. Through two Australian Aboriginal case studies, I reveal tensions in classifying cultural values for protected areas under the limited Guidelines offerings and provide an alternative engagement, through reassessing the means and scope by which values are assigned, for greater equity to Indigenous peoples.