note: the Congo and Ubangi (Oubangui) rivers provide 1,120 km of commercially navigable water transport; other rivers are used for local traffic only
Cook Islands:
none
Coral Sea Islands:
none
Costa Rica:
730 km (seasonally navigable)
Cote d'Ivoire:
980 km (navigable rivers, canals, and numerous
coastal lagoons)
Croatia:
785 km
note: (perennially navigable; large sections of Sava blocked by
downed bridges, silt, and debris)
Cuba:
240 km
Cyprus:
none
Czech Republic:
303 km