(1) The Executive Director may recommend to the Heritage Council that a place, being an area of land covered with water and any associated land, be included in the Heritage Register as a protected zone if the place contains—
(a) a registered shipwreck; or
(b) a registered shipwreck artefact; or
(c) a registered archaeological place; or
(d) a registered archaeological artefact.
(2) An area initially recommended under this section must not be greater than 100 hectares.
(3) In addition, any subsequent recommendation under this section recommending an expansion of the area of an existing protected zone must not result in that protected zone being greater than 100 hectares.