page_title: South Bay (San Diego County)
section_title: Geography
hierarchical_section_title: South Bay (San Diego County) / Geography
caption_attribution_description: English: The Tijuana River Estuary — an estuary and wetlands at the mouth of the Tijuana River at the Pacific Ocean. Located in the San Diego–Tijuana region of San Diego County, California (U.S.) and Tijuana, Baja California state (Mexico). The Tijuana River National Estuarine Research Reserve and Tijuana Slough National Wildlife Refuge are located here. A National Natural Landmark of the United States.
context_page_description: South Bay is a region in southwestern San Diego County, California consisting of the cities and unincorporated communities of Bonita, Chula Vista, Imperial Beach, Lincoln Acres, National City, and South San Diego.
  South Bay is a mix of heavy industrial complexes and shipyards alongside beaches and residential developments. One of its cities, Imperial Beach, bills itself as Classic Southern California for being relatively untouched in terms of other coastal cities.
context_section_description: South Bay borders both San Diego Bay and the Pacific Ocean. The region is at the southern end of the bay and western slope of the coastal mountains to the east. There are a few creeks that make their way from these mountains with their terminus in either the southern end of the bay, the ocean, or the Tijuana River Delta. Its boundaries are the San Diego Bay on the west, the United States–Mexico border on the south, National City's border with northern San Diego and Coronado to the north, and the unincorporated communities and Otay Lakes to the east.
caption: Tijuana River Estuary with Tijuana Hills in the back
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