Waterfront regeneration projects worldwide have transformed cities' edges into new public spaces. Although water should be the centrepiece of these transformations, users are often situated as passive observers of water; urban design of public spaces only affords distant views of water and limited possibilities for active bodily engagement and play. Formulaic urban design has often neglected the potentials of indeterminate spaces where users' desires can unfold. From these departure points, this paper uses a temporary design installation to investigate potential forms of active water engagement in a contemporary waterfront space. The installation prompts users to interact playfully with water through a variety of prototypes and de...