The resources on this page serve as a reference for current members who are new to paddling (and a reminder for the forgetful). GTKayak currently only trains kayak and not canoe, though that may change in the next year.
Top arm high. Rotate through the hips. Power with the legs.
The USACK guide to technique: Kayak Technique – USACK
A series of snapshots of Canadian Olympian Adam Van Koeverden. He has textbook perfect technique: Technique – Adam Van Koeverden
American Olympian Greg Barton demonstrates hip rotation:
Comparison of Canadian Olympian Adam Van Koeverden and Norwegian Olympian Eirik Verås Larsen: