In many cases, geological boundaries, shaped by rivers, mountain ranges, oceans and deserts, do not follow the boundaries drawn by people. UNESCO Global Geoparks, too, do not always follow human-made borders. Some UNESCO Global Geoparks therefore naturally cross national borders, connecting the peoples of different countries and encouraging intimate regional, cross-border cooperation. It is through this strong cross-border cooperation that transnational UNESCO Global Geoparks strengthen the relationship between countries and contribute to peacebuilding efforts. In 2008, the Marble Arch Caves UNESCO Global Geopark expanded from Northern Ireland across the border into the Republic of Ireland, becoming the world’s first transnational Global Geopark. Situated in a former conflict area, this UNESCO Global Geopark is now seen as a global model for peacebuilding and community cohesion. UNESCO actively supports the creation of transnational UNESCO Global Geoparks – especially in regions of the world where there are none yet.

Transnational UNESCO Global Geoparks: