Due to the great infrastructure for canoeing in this country, the rental process is quite seamless. You can choose to park at the end of your route and be driven to the beginning or park at the start and be picked up and brought back when you are finished. You will be supplied with some sort of waterproof barrel (usually around 50 L) in which you can store your belongings. It would be wise to only bring the essentials. Apart from clothes and a sleeping bag/tent, make sure to bring bug spray, sunscreen, a flashlight, a lighter, some snacks, a map to locate sights, and possibly a cheap digital camera (in a Ziploc bag). You will probably be too waterlogged to dare bring a laptop, smartphone or any other expensive electronics. Anything that doesn´t fit in the barrel can usually be stored and returned to you on completion of your journey.