Eden Landing Ecological Reserve is a nature reserve in Hayward and Union City, California, on the eastern shore of San Francisco Bay. The reserve is managed by the California Department of Fish and Game and comprises 5,040 acres of former industrial salt ponds now used as a low salinity waterbird habitat. It lies between the Hayward Regional Shoreline and Alameda Creek Regional Trail to the north and adjacent to Don Edwards National Wildlife Refuge and Coyote Hills Regional Park to the south and is south and adjacent to the San Mateo–Hayward Bridge, across which lies the Hayward Shoreline Interpretive Center. Some waterfowl hunting is periodically permitted. The remains of the Oliver Salt Company are located in the reserve.