"sea"

means—

(a)the high seas;
(b)all coastal waters; and
(c)land regularly or permanently submerged by sea water, including—
(i)the bed, subsoil and substrata beneath those waters; and
(ii)land flooded by sea water which subsequently becomes part of the bed of coastal waters, including the substrata beneath such land;

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