The notion that tourists actively co-create value with organisations is increasingly acknowledged in tourism marketing. Yet, not much is known about the processes in play when customers co-create value with each other. This conceptual paper offers a theoretical basis for the study of customer-to-customer co-creation in tourism contexts, while debating the epistemological assumptions of value-related research in tourism. Proposed conceptual framework posits that value is socially constructed and embedded in tourists' social practices.Keywords: Tourism experience; co-creation; value; customer-to-customer; social practices When citing this publication, please use the following reference:Rihova, I., Buhalis, D., Moital, M., Gouthro, M-B. (2014) Conceptualising customer-tocustomer co-creation in socially dense tourism contexts.