The San Elijo Lagoon Ecological Reserve is a coastal wetland located in San Diego County, California. Spanning over 1,000 acres, it serves as a vital habitat for various species of birds, fish, and other wildlife. The reserve features diverse ecosystems, including salt marshes, tidal flats, and coastal sage scrub, making it an important area for biodiversity. Visitors to the reserve can enjoy numerous trails and viewing areas, perfect for birdwatching and nature walks. The San Elijo Lagoon is also a key site for environmental education and conservation efforts, helping to protect the unique habitats and species that thrive in this region.