(1) This section applies if,—
(a) under an authority granted by or under an enactment, activities are undertaken on, under, or over the public foreshore and seabed; and
(b) as a result of those activities, an area of the public foreshore and seabed that is immediately adjacent to the area in which those activities are carried on becomes raised in height (whether gradually or imperceptibly or otherwise) so as to be above instead of below the line of mean high water springs.
(2) Despite any enactment or rule of law to the contrary, if the raising of the area described in subsection (1)(b) was not authorised by the authority referred to in subsection (1)(a), the raised area—
(a) continues to be vested in the Crown as part of the public foreshore and seabed; and
(b) remains subject to this Act.
(3) Sections 355, 355AA, and 355AB of the Resource Management Act 1991 apply with any necessary modifications to any area of the kind described in subsection (1)(b), and the Minister of Conservation may, under and in accordance with those sections, vest a right, title, or interest in an area of that kind.
(4) In this section, activities includes the reclamation of any land from the public foreshore and seabed.