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


Teachers on the Estuary (TOTE) training is back! On June 27th and June 28th join us at the Reserve for training where we will cover various aspects of how to understand and interpret climate science for your students. This training also discusses how to incorporate data collected at the Reserve into your lesson plans.

During the final training day on site, we will practice using the System-wide Monitoring Program (SWMP) graphing application, experience field trip activities, and take a tour of the border.

This training is designed for middle and high school teachers and is open for registration now. Click here to register by Monday, June 12th.

Current Conditions

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Water Temp

64.09° F

Dissolved Oxygen

8.06 mg/L

Water Level

6.23 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

  • June 9, 2023
    Friday Stewardship Session for Long-term Volunteers
    See more details