(1)The Commission may conduct a review of so much of the boundary of a local government area (which includes, for the purposes of this section, a preserved county) as —
(a)lies below the high-water mark of medium tides, and
(b)does not form a common boundary with another local government area.
(2)The changes that the Commission may recommend in relation to a review under this section are—
(a)the inclusion within the local government area of any area of the sea which, at the time of the review, does not form part of another local government area, and
(b)the exclusion of any area of the sea which, at the time of the review, forms part of the local government area.