The main purpose of this legislation is to enhance public access to the Hetch Hetchy Reservoir and Lake Eleanor Basin areas for recreational activities. It aims to ensure that these areas are available for public enjoyment while also preserving their natural and historical features. Key provisions of the legislation include the expansion of recreational activities allowed in the Hetch Hetchy Reservoir and Lake Eleanor Basin. These activities will include swimming, camping, picnicking, and the use of non-motorized watercraft.