Free plans for the huntington harbor kayak. these plans have complete instructions as well, and are in both imperial (inches) and metric (mm). this is a pdf file. Inflatable kayaks & canoes. solo touring; solo whitewater ik’s; tandem touring ik’s; tandem whitewater ik’s; river tubes; inflatable kayak paddles; inflatable kayak. The tributary 12 hd self-bailing raft is a highly maneuverable boat that excels on small, tight rivers where larger boats wouldn’t dare to go. it’s stable enough for.