Surfing on small waves with an expedition kayak can be extremely physical.
It's hard, it's fun and it's somewhat crazy to paddle like this but it also feels very rewarding to catch a surfable wave, even if it is just a short time.
You need to have the power and stamina to maintain at least some technique for acceleration at higher speeds in choppy conditions.
The second part of this story is about safety. Never gas out while paddling unsupported. Relax as much as possible, rest as much as possible.
Kayak: Seabird Victory HV
Paddles: regular touring paddles.
Drysuit: Artistic Air by Tahe Outdoors