The Elkhorn Slough National Estuarine Research Reserve is one of 28 National Estuarine Research Reserves established nationwide as field laboratories for scientific research and estuarine education. The Reserve is administered by the National Oceanic and Atmospheric Administration and managed by the California Department of Fish and Wildlife. The 1700-acre Reserve is a hub of activity and hosts programs that promote education, research, and conservation in Elkhorn Slough. The Visitor Center has award-winning exhibits that invite everyone to explore the Unseen Slough and the Elkhorn Slough Foundation bookstore and gift shop . There are five miles of trails that meander through beautiful oak woodlands, calm tidal creeks, and freshwater marshes. We offer tours on the weekends and special events throughout the year.