For the purposes of section 15-8:
(a) “Harbor” means a place on navigable waters where water-borne commercial or recreational traffic enters for the purpose of anchorage or docking or the unloading or receiving of cargo, supplies, equipment, fuel or passengers;
(b) “Navigable waters” means waters which are subject to the ebb and flow of the tide shoreward to their mean high-water mark;
(c) “Navigable waterways” means waters which are physically capable of supporting water-borne traffic, and subject to the ebb and flow of the tide.
(P.A. 77-71, S. 2, 3.)