Lands, or lands and water, acquired for public shooting grounds, state marine (estuarine) recreational management areas, or wildlife management areas shall be operated on a nonprofit basis by the department. Multiple recreational use of wildlife management areas is desirable and that use shall be encouraged by the commission. Except for hunting and fishing purposes, only minimum facilities to permit other forms of multiple recreational use, such as camping, picnicking, boating, or swimming, shall be provided. Except as provided in Section 1765, and to defray the costs associated with multiple use, the commission may determine and fix the amount of, and the department shall collect, fees for any use privileges. However, tours by organized youth and school groups are exempt from the payment of those fees. Only persons holding valid hunting licenses may apply for or obtain shooting permits for public shooting grounds, state marine (estuarine) recreational management areas, or wildlife management areas.