"Yanie" wrote in message
m...
Someone recently mentioned to me the idea of a long river trip, and we
were debating different types of craft that we could use. Somehow I
became hooked on the idea of joining two canoes into a catamaran, as
in the linked diagram.
...
http://www.beowolf.org.uk/misc/sailing_canoe.png

Sure. This is a common lashup, and it can be used to run big 'unrunnable'
whitewater too. Wenger used it to run the Liard Grand Canyon in the 80s.

Hth,
Fred Klingener