Saglek Fiord is a long, narrow saltwater inlet located in the remote Torngat Mountains National Park of northern Labrador. It is the southern boundary of the park and is characterized by steep-sided, branching fjords that extend approximately 36 miles inland from Saglek Bay, with the bay's mouth being about 13 miles wide. The fiord's geography is dramatic and largely inhospitable, featuring a series of branching arms. Access for paddlers is extremely remote, typically requiring a multi-day boat journey from the community of Nain or transport via helicopter from the Torngat Mountains Base Camp and Research Station located in the area. A specific launch point for backcountry hikers, which also serves paddlers, is the mouth of Nakvak Brook (Pitukkuk) on the fiord. This area is a traditional Inuit travel route linking Nunavik and Nunatsiavut.

The fiord is exposed to the open Labrador Sea, leading to significant wind exposure and fetch. Paddlers must be prepared for cold water temperatures year-round and rapidly changing conditions. The area is a site of deep historical and cultural significance, with numerous documented archaeological sites, including important Inuit habitation sites on islands within the adjoining Saglek Bay, such as Rose Island. The region is co-managed by Parks Canada and the Nunatsiavut Government, and visitors must register for backcountry travel. The presence of Canadian Forces Station Saglek, a radar base, indicates there may be restricted zones or occasional vessel traffic. The overall paddling experience is one of profound wilderness and isolation, suitable only for highly experienced, self-sufficient expeditions prepared for Arctic conditions, with no on-water facilities or amenities.