SINKING COULD BE continues a cycle of recent site-specific compositions in which an assembly of materials including blue light, sound and cotton textiles are activated in order to inform a practice of elemental sensing. In this project, Mombaça extends this material enquiry to the shoreline and the fluidity of sand, evoking the presence of Sloterplas lake, mined for sand to build Amsterdam’s Western Garden Cities. Does a dune remember the ocean; does sand recall water's embrace?