Step 1: Gather Gear Next to the Kayak
Ensure that all gear is in a dry bag if it needs to stay dry. Best barrels should be lined with a plastic bag. Sleeping bag and sleep mats should also have a waterproof stuff sac or lined with plastic.
Step 2: Pack Gear Efficiently
Big items such as bear barrels and tents should be placed in next and then pack smaller dry bags and items around them.
Tip: leave the stings faced towards you for easy removal.
Remembering what you've put where is tricky but very helpful for quickly accessing what you need as well as re-packing your kayak later in the trip.
Step 3: Extra Storage Space
In this image, a camp chair and bear barrel are in front of the foot pedals.
Another great storage spot is behind the kayak seat. These items are likely to get a bit wet so make sure they are either able to get wet or have a good dry bag.
Step 4: Close Up and Leave Stuff Handy
A big bag for hauling gear to and from the kayak is recommended (ikea bags are great for this). Leave that bag near the top since you'll unload into it.
Leave the things out that you'll want throughout the day (i.e. Snacks, water, rain gear, bear spray, lip balm, sun screen, hat, sunglasses). Put these items in a deck bag or dry bag.
Have a safe and fun trip!