The Crocs Classic shoes are very comfortable but also provide good support. They are good for around a campsite as they have thick bottoms so that sharp objects won't come through them to cut your feet.
I used the Old Town Saranac 146 canoe on Sheridan Lake in South Dakota with my son. We spent the entire day on the water. The Saranac was comfortable & tracked well in the water. Overall it is a sturdy, comfortable canoe that is tracks well.