Del Mar Lagoon (San Dieguito Lagoon): Estuary Trails, Bird Habitat, and Wetland Wonders
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Published February 25, 2026
Del Mar Lagoon (San Dieguito Lagoon): Estuary Trails, Bird Habitat, and Wetland Wonders
Near the coast in Del Mar/Solana Beach along the San Dieguito River mouth, San Dieguito Lagoon (often called Del Mar Lagoon) is a restored estuarine gem within the San Dieguito River Park and Ecological Reserve. This brackish wetland; enhanced by recent multi-year restoration (80+ acres of wetlands/salt marsh added); serves as a critical stop on the Pacific Flyway, drawing birders and nature lovers to its interpretive trails and serene views.
A Crossroads of Estuary, Marsh, and Migratory Habitats
The lagoon merges tidal Pacific waters with freshwater river inflows, creating brackish estuary, salt marsh, mudflats, and riparian zones. This supports exceptional biodiversity: nursery habitat for fish like topsmelt, California halibut, and striped mullet; nesting/foraging for endangered birds (California least tern, snowy plover); and thousands of migrating waterfowl. Recent projects have boosted sensitive species, with osprey nests, herons, egrets, and diverse shorebirds thriving amid restored marshes.
Adventure With a Conservation Conscience
Easy-to-moderate trails (e.g., Coast to Crest Trail sections, 1.5-mile interpretive walk from Jimmy Durante Blvd) offer birdwatching, photography, and lagoon overlooks with QR-code signage. Multi-use paths suit hikers, bikers, and equestrians.
Access is managed for protection: free day-use, sunrise to sunset, pack-in/pack-out rules, stay on trails to avoid disturbing nesting areas, and respect seasonal closures. Ongoing funding efforts (additional $7M sought in 2026) continue habitat work.
San Dieguito Lagoon delivers San Diego North County estuary trails and bird habitat in peaceful restoration. For eco-travelers seeking migratory spectacles and wetland serenity, the quiet paths reward mindful steps; a thriving coastal sanctuary.