At a latitude of 50°S, the Madre de Dios archipelago is the southernmost karst region on Earth. This exceptional maritime landscape has been carved by glaciers and currently experiences extreme climatic conditions, characterised by significant rainfall and relentless westerly winds. These competing elements have shaped a spectacular landscape given the name of 'marble glaciers', remarkable not only for the wide variety of its surface forms, but also for its world-class speleologic potential.

Over the course of successive expeditions during the last twenty years, the CENTRE TERRE team has explored and documented the most important cave system in Chile and discovered various rock paintings as well as archaeological remains of the first inhabitants of these regions: the Kawésqar Indians also known as the "nomads of the sea". The expeditions require months of preparation, technical and logistical know-how, and are each a unique human experience. As a result of this research, Madre de Dios, the "island of marble glaciers" is now a candidate for inclusion in the World Heritage List of UNESCO. The ULTIMA PATAGONIA project brings together an international team of explorers and scientists in an adventure with clear objectives: to highlight the importance of protecting this extraordinary site and share their discoveries with the widest public.