Romain Quénéhen, a Belgian on a roadtrip from BC to Alaska, went missing on the Nass River, BC, Romain’s packraft and backpack were recovered. Satellite imagery shows large rapids just out of sight from his probable put in. It is likely that the rapids caught Romain off guard.
https://thingstolucat.com/2019/08/15/packraft-fatalities/
https://www.terracestandard.com/news/search-called-off-for-nass-river-kayaker/https://www.haidagwaiiobserver.com/news/belgian-man-linked-as-possible-missing-kayaker-in-nass-river/