This study is a researcher-practitioner action inquiry which was used to explore children's sensory experiences with a focus on the sense of smell (olfaction). We critically considered the early childhood theories that positioned children's sensory learning within equitable, socially just early childhood approaches and connected them to an action inquiry approach. The data comprise a systematic documentation of the odours experienced by children in the classroom, an olfactory log of the kindergarten space as well as children's 'smellmaps' from outdoor 'smellwalks'. We interpret children's olfactory experiences and reflect on the ways in which the multi-sensory approach to literacy might extend the field's understanding of the multi-dimensional ways in which educational researchers and practitioners can cultivate their joint inquiries in early childhood education. We present implications for adopting an olfactory researcher-practitioner collaboration in early childhood and conclude that such an approach exemplifies a sensorially sensitive early childhood curriculum.