In this Act—
“harbour” and “harbour authority” have the respective meanings given to them by section 57 of the M1Harbours Act 1964;
“harbour master” includes any dock master or pier master who is not a subordinate of a harbour master and any deputy or assistant of a harbour master or of such a dock master or pier master;
“vessel” includes—
(a)a ship or boat, or any other description of craft used in navigation;
(b)a rig, raft or floating platform, or any other moveable thing constructed or adapted for floating on, or partial or total submersion in, water; and
(c)a seaplane, a hovercraft within the meaning of the M2Hovercraft Act 1968 or any other amphibious vehicle.