Lago Grey is a remote and strikingly beautiful glacial lake nestled within Torres del Paine National Park in the Magallanes and Chilean Antarctica Region of southern Chile. Fed by the massive Grey Glacier — one of the largest glaciers in Patagonia — the lake sits at the southern terminus of the Southern Patagonian Ice Field and drains southward via the Río Serrano toward the Última Esperanza fjord system. The surrounding landscape is defined by dramatic granite towers, windswept lenga beech forests, and the ever-present blue-white face of the glacier calving icebergs directly into the lake's frigid waters. This is one of the most visually spectacular fishing environments in the world, and its position within a protected national park gives it a character entirely unlike more accessible Patagonian fisheries.