A kayak reservation system will help you keep in touch with your customers after they have been on a tour. You can send them emails about upcoming kayak tours, send them a discount or a coupon to invite their friends on a kayak tour. This is marketing, but not the type that annoys your customers, it is the type that keeps your customers interested in your tours and in touch with what you are doing that is new. Also if your website is hit by a potential customer, there will be a button (a call-to-action) for them to press to get information and at the same time giving you their information so you can keep them in your file to send further kayak tour information.
With a kayak reservation system, you will be able to spend your time kayaking with guests and your reservations will be securely handled automatically.