The establishment and development of public and private parks and recreation areas, outdoor education areas, historic, natural and scientific areas, game refuges and closed areas, fish and wildlife habitat improvement projects, game bird and animal farms, wildlife preserves and public boat launching ramps, provided that:
(a) Any private development allowed under this subsection shall be used exclusively for the permitted purpose;
(b) Only limited filling and excavating necessary for the development of public boat launching ramps, swimming beaches or the construction of park shelters or similar structures is allowed;
(c) The construction and maintenance of roads necessary for the uses permitted under this subsection is allowed only where such construction and maintenance meets the criteria in §
435.14-05C(1) of this article; and
(d) Wetland alterations in game refuges and closed areas, fish and wildlife habitat improvement projects, game bird and animal farms and wildlife preserves shall be for the purpose of improving wildlife habitat or to otherwise enhance wetland values.