Water constitutes a recurrent theme in contemporary development discourse as its altering distribution poses threat to humanity. This study seeks to examine how diminishing planetary water shatters cultural institutions and sacred traditions especially in indigenous communities where people's religious practices and social relations are defined by their engagement with water. The study is ethnographically oriented to collect data about the historicity, sacrality, value, access, and use of shrinking natural inland water bodies. It also attempts to describe local understanding and interpretation of shrinking water in the context of global climate change. Two historically sacred water sites are selected in Lagos state, considering the dynamics of global environmental and social change that the city embodies. The study promises to make sociological, cultural, and place-based contribution to global discourse on water crisis that is mostly dominated by study of global warming and climate change science.