Tijuana Estuary
| Tijuana Estuary | |
|---|---|
Tijuana River Estuary | |
Map of California | |
| Location | San Diego County, California |
| Coordinates | 32°33′24″N 117°7′34″W / 32.55667°N 117.12611°W |
| Area | 1,569 acres (635 ha) |
| Designated | 1973 |
The Tijuana Estuary (or Tijuana River Estuary) is an intertidal coastal wetland at the mouth of the Tijuana River in San Diego County, California, United States, bordering Tijuana, Baja California, Mexico. It is the location of Tijuana River National Estuarine Research Reserve, Tijuana Slough National Wildlife Refuge, Border Field State Park, and the Tijuana River Valley Regional Park. The estuary is a shallow water habitat. It was designated a National Natural Landmark in 1973.