Each provider operates a little differently. Do your homework before your trip to have the most enjoyable experience. Many first time canoeists get too ambitious, a two hour trip with a picnic is much more enjoyable for a family with small children than a two day camping trip consisting of 6 hours on the river each day.
Some paddlers prefer to be bussed to and from the river.
Some prefer to be shuttled to their starting point, but have their vehicle waiting for them at the end of their trip. Understand your provider's transportation procedure prior to your trip. Ask your providers for recommendations on the best time to go. Know what is required up front and what part of your deposit will be refunded upon completion of your trip. Many provers have a two week cancellation policy for full refund of your deposit.