Contemporary times have been marked by the trivial and excessive use of the adjective “sustainable”, tourism has not been left out of this trend. The lauded “sustainable destination” title has become a central premise among territorial management groups. However, developing public policies to meet this status has evidenced reductionist and sometimes misguided treatments that fail to incorporate the true complexity of sustainability into tourism. The results are disconnected, one-off, ineffective actions based on guesswork or the interests of particular actors in the territory. This essay presents a simplified and didactic proposal for a territorial planning instrument (Sustainability Mandala in Tourism – TSM) to contribute to the attempt to seek sustainability in tourism development. The TSM comprises 21 indicators, defined from the analysis of international instruments and national strategies in force in tourism planning. The instrument covers the seven dimensions of sustainability (environmental, territorial, political, cultural, social, economic, and technological), and it has been developed to guide local and regional tourism management groups pragmatically. Keywords: Sustainability Indicators; Tourism; Public Policy; Mandala of Sustainability in Tourism; Local Development.