Skip to main content
Back to Show
California Coastal Trail

Tijuana Estuary

Season 1 Episode 1

Visit the Tijuana Estuary and, whether you know it or not, you're experiencing what it may have been like to stand on the beach in Southern California hundreds of years ago. This spot, where the Tijuana River meets the Pacific Ocean, is the largest and best example of the natural landscape that once was between Santa Barbara and some two hundred miles south of the border to San Quintín. Human development for cities meant paving over hundreds of miles of coast was wetlands.

And such an abundance of fresh water made the region a major stopover for the migrating birds using the Pacific Flyover, as well home to native species. As seen in this video, its especially critical to the native light-footed Ridgway's rail, a bird species once abundant in SoCal's wetlands, but almost went extinct over thirty years ago.

Casually referred to as the Tijuana Estuary -- Tijuana, named after the river that flows from Mexico to California into the ocean, and estuary, where salty ocean water and fresh river water mingle, creating a unique habitat -- the land makes up a somewhat complex map of different entities.

Being an excellent and last large example of the region's wetlands, the federal government in 1982 designated the estuary as the Tijuana River National Estuarine Research Reserve. As long-winded as that sounds, the designation from the National Oceanic and Atmospheric Administration didn't mean there was suddenly new land to manage. It instead forged a partnership between the federal government and state.

The estuary was already within Border Field State Park, Tijuana Slough National Wildlife Refuge, and a small part of San Diego County's Tijuana River Valley Regional Park, so drawing a line around and including them in the National Estuarine Research Reserve System meant setting up a structure to fund the state to conduct research and education.

The latter part is important, not only because it's good to educate visitors, but for introducing coastal training programs tailored for decision makers like local planners and politicians. That way, when it comes time to approve, deny, or modify development plans along the coast, they're more prepared to make an informed decision than before.

Support Provided By
Experiencing the Wild Sonoma Coast Along the Kortum Trail
5:08
Pristine conditions along this area are a result of decades of work from activists.
Devil's Slide Trail
6:35
Devil’s Slide was a treacherous section of Highway 1 until a landslide closed it for good.
The Ancient Coast of Wilder Ranch State Park
4:34
Once upon a time, Wilder Ranch State Park was a dairy known for its delicious butter.
West Cliff Drive: The Heart of Santa Cruz
3:54
West Cliff Drive is one of the most beautiful features of Santa Cruz.
Half Moon Bay Coastside Trail
4:39
The Half Moon Bay Coastside Trail offers sweeping views of the Pacific Ocean.
Monterey Bay Coastal Recreation Trail
6:48
This popular segment of the California Coastal Trail almost didn’t happen.
Pleasure Point: Connecting Santa Cruz to Surf Breaks
5:07
East Cliff Drive is one of the newest sections of the California Coastal Trail.
Monterey Bay Sanctuary: Serengeti of the Sea
6:53
This "Serengeti of the Sea" offers some of the best wildlife viewing in the world.
Big Sur: Sanctuary of the Spectacular
5:56
Big Sur is a precious jewel that remains pristine, rugged and remote.
Moonstone Beach: Where Elephant Seals Roam
5:27
It's not every day you get to witness 5,000-pound elephant seals charge each other.
Point Buchon Trail: The Gateway to a Secluded Coastline
6:00
This section of the California Coastal Trail has only been open to the public since 2007.
Pismo Beach: The Central Coast's Recreation Destination
5:10
Pismo Beach is set to become a major destination for outdoor recreational activity.
Active loading indicator