Just had a really fun experience:
Bought a large 30-square-foot parafoil kite with strong kiteline.
Paddled into strong wind for a fairly long distance.
Threw the big parafoil into the air.
Wind caught parafoil kite.
Kayak moved very fast.
Much fun!

Did keep sheers on hand in case line tangled or got dangerous.

Plan to try this more in the future.