Kennedy Lake has a surface area of , making it the largest lake on Vancouver Island. It has an irregular shape made up of two basins, referred to as the Main Arm and the Clayoquot Arm, connected by a narrow sill.
Kennedy Lake's vast expanse covers its territory, making it the largest body of water on Vancouver Island. The lake's irregular shape is characterized by two main depressions, referred to as the Main Arm and the Clayoquot Arm, which are connected by a narrow channel.