The preserve is built on reclaimed tidal land that was once part of a larger, continuous wetland system significantly altered by 20th-century development.
The brackish environment is the result of freshwater runoff from Matadero Creek mixing with saltwater from the San Francisco Bay.
It is a globally recognized Important Bird Area (IBA) due to the high density of wintering shorebirds.
The Lucy Evans Baylands Nature Interpretive Center is constructed with a unique 'green' design intended to blend into the marsh environment.
Tidal cycles dictate which sections of the marsh are visible, with high tides often submerging the lowest-lying mudflats completely.
Baylands Nature Preserve is a 1,940-acre marshland ecosystem, representing one of the largest tracts of undisturbed salt marsh remaining in the San Francisco Bay. The preserve features 15 miles of multi-use trails that wind through tidal marshes, lagoons, and seasonal wetlands. It serves as a critical stopover for migratory birds along the Pacific Flyway, supporting species like the endangered clapper rail and salt marsh harvest mouse. The landscape is characterized by wide-open vistas and brackish water habitats that fluctuate with the daily tides. Elevated boardwalks provide access across sensitive mudflats, while the Lucy Evans Baylands Nature Interpretive Center offers educational exhibits on local ecology. The preserve connects to the Palo Alto Flood Control Basin, extending recreational space for cyclists and birders. Because the area is situated at sea level, the terrain is exceptionally flat and suitable for all skill levels.
The wooden boardwalk leading from the interpretive center, which offers an unobstructed horizon line over the marshlands.
Bring high-quality binoculars, as the best bird-watching often occurs at a significant distance from the main trails.
Check local tide charts before visiting, as high tide provides the best opportunity to see birds pushed closer to the boardwalks.
Apply sunscreen and insect repellent, as there is almost no shade on the exposed marsh trails.
Attempting to walk off-trail into the mud, which is soft, deep, and can trap unwary visitors.
Stay strictly on marked trails to protect fragile marsh vegetation and avoid disturbing nesting wildlife; dogs must be on a leash.
