These are boats (and nuts). They fly and ride trains and buses at no extra fee (the boats, not the nuts).
Carrying the kayaks in airplanes, trains, buses and taxis was no problem; all american transportation had facilities to handle bags of that size. Even with the Victoria Clipper, from Seattle to Victoria, this was no problem, although they had all their staff carrying our luggage on board. It might become one, when everyone tries to carry luggage of that size...
Contributors to this page: Thomas Yost (TDY), Patrick Poirier (PPR), Gerald Maroske (GUM) and Hendrik Maroske (HHM)