evidence: The Patagonia region encompasses one of the most remote areas shared between Chile and Argentina, which is home to the Southern Patagonian Ice Field. This study focuses on the Torres del Paine, Bernardo O’Higgins, and Los Glaciares protected areas in southern Patagonia. These three national parks provide an essential connectivity corridor for conservation and include the Southern Patagonian Ice Field, a crucial water resource for both countries with a still unmarked border (Fig. 8.1). While there is no formalized transboundary conservation area, a study has evaluated adaptation strategies in the area’s internationally adjoining protected areas (Solórzano 2016). [...] Participants reflected on how the area’s unique political geography affects the plausibility of effective transboundary conservation. The Southern Patagonian Ice Field border is at the heart of the Patagonia landscape and is a massive freshwater reserve. This area’s full demarcation is still not formalized, as both countries claim a specific section of the border.