I rowed the bi-yak around in the bay. Seems real cool. I met the guys who build them at a tackle dealers show in denver a few years ago. They came to visit not to long ago and rowed the upper duc.
The boats where devoloped to guide in serious white water in Aspen Co. I cant remembet the river they work on, but there is lots of class 3 And 4 water. They where too price for us to carry them on a small flyshop budget. They seem like tough boats. Email me if you want the guys Number, his name is Brett Gardner.
Joe