The right side of the river when facing downstream. The left side of the river when facing downstream. River Rating A measure of the difficulty of a rapid or a river. High Water River flow above an expected average. Makes the currents faster.
Some rapids get easier, others become more difficult.
Low Water Flows below an expected average. More rocks and obstacles may show, rapids become more technical. Eddie Water flowing upstream behind a rock or other obstacle. Eddies often provide a safe place to get out of the current. Where the water flowing upstream passes the water flowing downstream.