When they say they are using whole trees, do you think they mean that a tree is trimmed into a log and then bent into shape using the whole log as a strake--or are they using planks made from a log?
I read it as the former, but that sounds strange.
The trunks only, but of fairly young trees. Not sure what they have in mind with this approach, as the oldest non-canoe wrecks are all planks, with some au naturale round trunks and limbs used for structure (not hulls).