Whenever we explore an Andean slope in southern Patagonia, we are venturing into glacier country. The glaciers that melted long ago hollowed out valleys that today contain beautiful deepwater lakes fed by pristine rivers that are colourful, turbulent and full of life.

The ice rivers that remain provide an appropriate frame as they slowly descend amid  forests on the sides of famous mountains.

One such valley is occupied by Lake Pueyrredón, which brushes past the foot of Mount San Lorenzo as it crosses the Andes, and is separated from cozy Lake Posadas by a curious strip of land, a relic of one of those ancient ice rivers.

The two glittering lakes, so different from each other, thus have occasion to contrast their colours, and the strange hues of the ancient rock formations around them.

On this thin isthmus between the two lakes, shaded by old Lombardy poplars, and perfumed by sweet briar, box-leafed barberries, gooseberries, red currants and raspberries, lies Lagos del Furioso.