I have been using sea kayak for hunting past 20 years here in Iceland, shooting over 200 sea ducks every winter. Also I use my kayak to hunt shags (cormorants) in the western part of Iceland. Check my web site:

http://www.sportbud.is/index1.php?if..._myndasafn.htm

or www.sportbud.is and click at Myndir & greinar. There you can see few samples from my kayak hunting methods.

Regards

Robert