A multi-day, fully self-supported wilderness trip alternating hiking with paddling: you carry the packraft, paddle, drysuit and all your camping kit on foot to a put-in, then run stretches of cold, often pushy glacial river before walking on.
The water is near-freezing, silty and powerful, with braided channels, standing waves and the real hazards of cold-water immersion far from help.
This is not a beginner activity — you need solid whitewater and wilderness skills, or an experienced partner, plus the judgement to read glacial rivers whose levels swing with the day's melt. Navigation, river crossings and self-rescue are all on you.
In return: total solitude, landscapes almost no one sees, and the deep satisfaction of a true point-to-point journey.