COSMO-ART proposes a new methodology based on a Cosmopolitan Approach to assess common interest points in uses and perceptions of rock art sites so as to articulate perceptions and development policies and better fulfil requirements of sustainability. This methodology has been elaborated by consortium members in the Maloti-Drakensberg WHS (South Africa-Lesotho) and COSMO-ART intends now to test its transferability by investigating 2 other regions: 1/ the Kimberley area, South Africa and 2/ the Erongo massif, Namibia. This cosmopolitan approach requires designing a systemic, diachronic and interdisciplinary methodology, combining contributions of archaeology, history, museography, human and social geography, environmental and cultural anthropology, geomorphology, and materials science. The project is split into 3 interdependent WP: 1/ Uses and values of rock art sites; 2/ Tourist activities and public presentation; 3/ Vulnerabilities and mitigation strategies.