A 100km seven-day trek from Ritsem to Saltoluokta. Lying inside the Arctic Circle, with no roads, signed trails, wardened huts, or motorised access, Sarek National Park 1970 square kilometres. This most famous of Sweden's national parks is a roughly circular expanse of genuine wilderness, a daunting, glaciated, inaccessible region of 2000m mountains, densely vegetated trough valleys, unforgiving high-alpine plateaux and turbulent ice-cold rivers fed by glacial meltwater. The landscape feels decidedly primordial, perhaps because the last remnants of the vast Fennoscandian Ice Sheet only receded from the mountains of eastern Sarek some 9000 years ago...