A conduit-supporting structure for a small watercraft allows the number of conduit
guide components to be reduced, and the required number of processes in piping
and wiring to be reduced during assembly. A vessel body includes a hull 14,
constituting the lower portion thereof, and a deck for covering on top of the
hull. A floatation insert block F1 is disposed between the hull 14 and
the deck, and the block F1 is made with a supporting groove F1a
formed therein, for guiding conduit such as a pipe and/or a cable. The conduit
is guided along the supporting groove F1a, and is supported in the
supporting groove F1a by being pushed therein, taking an advantage
of the resiliency of the floatation insert block F1.
