Sec. 4. (a) As used in this section, "natural scenic beauty" refers to conditions produced by nature without manmade additions or alterations.
(b) As used in this section, "recreational purpose" means any of the following:
(1) Walking.
(2) Fishing.
(3) Boating.
(4) Swimming.
(5) Any other recreational purpose for which Lake Michigan is ordinarily used, as recognized by the commission for the purposes of this section.
(c) The citizens of Indiana have a vested right to:
(1) enjoy the natural scenic beauty of Lake Michigan;
(2) enjoy and use the natural resources of Lake Michigan; and
(3) use Lake Michigan for recreational purposes.
(d) The citizens of Indiana have a vested right in the preservation and protection of Lake Michigan.