Here are some things I always pack for Trips to Canada ( other than some of the items already mentioned ):
1. Hook cutters, and bring some neosporin w/pain relief in your 1st aid kit 2. Camera 3. Paddles for your boat 4. Passport 5. Insurance card for Canada travel 6. Calling card
There is a much longer list but most of them are more obvious so I won’t list them…