San Elijo Lagoon is a coastal wetland located in San Diego County, California. It spans approximately 1,000 acres and serves as an important habitat for various wildlife species, including birds, fish, and other aquatic organisms. The lagoon is part of the San Elijo Lagoon Ecological Reserve, which aims to protect and restore the area's natural environment. Visitors to San Elijo Lagoon can enjoy numerous recreational activities, such as hiking, birdwatching, and photography. The reserve features several trails and viewing areas, allowing people to appreciate the diverse ecosystems and scenic views. It is a popular spot for nature enthusiasts and families alike.