California Code, Public Resources Code - PRC § 32633

(a) To acquire and manage public lands within the San Diego River area, and to provide recreational opportunities, open space, wildlife habitat and species restoration and protection, wetland protection and restoration, protection of historical and cultural resources, and protection, maintenance, and improvements of the quality of the waters in the San Diego River and its watershed, its tributaries, and historic flumes emanating from the river for all beneficial uses, lands for educational uses within the area, and natural floodwater conveyance.

(b) To provide for the public's enjoyment, and to enhance the recreational and educational experience and cultural and historic interpretation on public lands in the territory in a manner consistent with the protection of land and natural resources, as well as economic resources, in the area.