Video footage ©William Bay
Drone footage ©Joshua Rittenberry

Experience Southern California's largest coastal wetland

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The Tijuana River National Estuarine Research Reserve is one of 30 Reserves in the United States. We preserve, protect, and manage the natural and cultural resources of the Tijuana River Estuary by creating opportunities for education and research while promoting public access for recreation throughout the Reserve. Come experience the beauty and wonder of this natural wetland habitat.

A mother and child overlooking the wetlands at the Tijuana River National Estuarine Research Reserve

Explore the Tijuana Estuary

From hiking and biking to birding and horseback riding, the Tijuana Estuary has something for everyone.

Student researcher Nancy Torres washes and separates the samples she's collected into multiple composites in the Tijuana Estuary.

Our Research

The unique socio-ecological setting of the Tijuana Estuary makes it an ideal "living laboratory" for researchers.

Students participate in an educational class at the Tijuana Estuary Visitor Center

Education Programs

The Tijuana Estuary offers a variety of educational programs that celebrate the natural and cultural resources found in the Reserve.

Current Announcements

Upcoming Teacher Training: Tijuana Estuary Explorers

“Tijuana Estuary Explorers” is a school program, targeted for 3rd – 6th grade, that meets state standards and incorporates reading, expository writing, and science into multiple comprehensive hands-on activities about the Tijuana Estuary and its watershed.

A teacher training is required for all teachers who wish to bring students for a program. Once completed, teachers do not have to repeat it and they may bring their class for a school program every year. The training will guide teachers through the student journal and includes both a virtual and in-person portion. On the in-person day, a teacher’s guide and student journals will be given out so teachers should bring a box or bag to accommodate.

The next training will be in a hybrid format on February 6, 7, and 10, 2023. Please click here to learn more about teacher trainings.

Now Available for Public Review & Comment - comments are due March 13, 2023

The Recirculated Draft Environmental Impact Report (EIR) for the Nelson Sloan Quarry Restoration and Beneficial Reuse of Sediment Project (SCH # 2019049100) is now available for public review and comment.

In-person Public Meeting
Thursday, February 16, 2023 | 6:00 - 7:00p.m.
Location: Tijuana Estuary Visitor Center, 301 Caspian Way, Imperial Beach, CA

Public Comment Period
January 25 through March 13, 2023

Current Conditions

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Water Temp

58.75° F

Dissolved Oxygen

4.62 mg/L

Water Level

3.38 ft

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Divided Together Podcast

Divided Together is a California State Parks podcast series that explores the land, the history, and the people surrounding Border Field State Park.

CA State Parks Research Assistant recording and informational video at the Tijuana Estuary

Lunchtime Live

Join us every other Tuesday at 12pm on Facebook for our Lunchtime Live event where we highlight a variety of species and topics at the Estuary.

Upcoming Events

  • February 3, 2023
    Friday Stewardship Session for Long-term Volunteers
    See more details