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In this study, a review of green tourism research is conducted. Using bibliometric analysis, existing and emergent research clusters were identified for epistemological investigation in the study. The field of eco-friendly tourism and other research areas incorporating similar areas such analysis aids in the identification of major subjects, interrelationships, and collaboration patterns. The visualization of similarities is used to create a graphical map of the green tourism study field (VOS). From 1987 to 2021, this source code analysed bibliography from 163 Scopus-indexed research publications. This graphical map reveals the contributions of writers and countries through time, as well as their collaboration and publication trends. This chapter provided major research concepts that have been analysed, as well as shared spaces of current study interest and potential research projects.