Portage Lake in Chugach National Forest, Alaska

© Ron Niebrugge/Alamy

Portage Lake in Chugach National Forest, Alaska

For fly fishing fans, the Tree River is probably a bucket-list item. Just getting to this region of Nunavut, a recently designated territory in Canada, is an undertaking, as the whole area is in the remote Canadian Arctic. But every summer, for a few short weeks, the fishing lodges here fill up with visitors hoping to hike out to the banks of the Tree and cast a line.