Paddling strategies differ when going upstream versus downstream in a river.
When paddling a canoe upstream, it is wisest to travel near the shore because the water current is slower close to the shore due to friction, making it easier to paddle against the current. Canoeing downstream is best done in the middle of the river since the current is faster in the middle, allowing for a quicker downstream journey.
https://brainly.com/question/36980540