You don't have to invest a lot of money to go canoeing. If you have your own craft and gear, that's great. In picking your paddle, the best length is generally one that reaches your chin when its tip touches the ground. Paddles ARE important. Make sure you pick a comfortable grip.
Paddles come in a variety of materials.
Pick the right one. A paddle with the correct length, blade shape, grip design, and material, all contribute to the comfort and safety of paddling. Never cut or damage living trees and shrubbery. Be absolutely certain any fire is completely out before leaving. Carry litter out.