The Nef Glacier is located in the Patagonian Ice Field in southern Chile. It is part of the larger Southern Patagonian Ice Field, which is one of the largest extrapolar ice fields in the world. The glacier flows down from the ice field and contributes to the surrounding lakes and rivers. Nef Glacier is known for its stunning blue ice formations and dynamic movement. It is a popular destination for researchers studying climate change, as glaciers in this region are sensitive indicators of environmental shifts. The glacier's retreat over the years highlights the impacts of global warming on glacial systems.