The River by Peter Heller
Best friends Jack and Wynn are launched on the adventure of a lifetime, canoeing the remote Maskwa River in Canada. They will have idyllic moments of camping, fishing, stargazing, and discussing books. But mostly it will be a desperate race for survival, with an approaching wildfire, rapids to run or portage around, and an increasing threat of violence from bear or man. Wynn is large and optimistic while Jack is wary and no stranger to tragedy. They’re well-prepared, until they lose some gear and rescue an injured woman. This compelling, action-packed novel is almost impossible to put down, and is a stunning, memorable read.