"coastal waters"

means—

(a)the internal waters, territorial waters, exclusive economic zone and continental shelf of the Republic referred to in sections 3, 4 , 7 and 8 of the Maritime Zones Act,1994 (Act No. 15 of 1994), respectively; and
(b)an estuary;

[Definition substituted by section 1(l) of Act No. 36 of 2014]