The Minister may,
after consulting the relevant local government —
(a) by
notice published once in a newspaper circulating generally in the State, close
the whole or any part of a public access route for such period as is specified
in that notice; and
(b)
cause such signs and barriers to be placed on or near the public access route
or part of the public access route closed under this subsection as are
necessary to warn members of the public of that closure and of the duration of
that closure.