Un Mar de Colores · San Diego County
San Diego County Watershed Education — From Mountains to Ocean, Free
Pathways from watershed education to ocean stewardship cleanups and Ocean Stewards after-school.
- Ages
- All ages
- Schedule
- Summer cohorts + year-round school field trips
- Cost
- Free
The Watershed Explorers program is Un Mar de Colores's flagship environmental education offering. Summer overnight cohorts trace the journey from Cuyamaca Rancho State Park's mountain streams to the San Diego coast, with special focus on the Tijuana River watershed — California's most cross-border and pollution-impacted river system. Curriculum integrates hydrology fundamentals, Indigenous Kumeyaay perspectives on water, and California coastal policy. Year-round day trips serve school field-trip groups across our 15+ Title I partner schools, and all programming is free with transportation included.
This hub connects San Diego County families to watershed education across 27 cities. Every city link below is a full local page with beaches, school partners, and enrollment paths — not an empty gateway.
You might be feeling this
- —Overnight environmental camps cost $400+ per student — watershed immersion feels impossible for San Diego County working families.
- —You want grandparents involved — many environmental programs aren't family-accessible from San Diego County.
- —Transportation to mountain field sites from inland San Diego County is another unpaid logistics puzzle for teachers.
- —Paid 'eco-camps' charge for experiences that should be public education — the math never works for your household.
What changes when youth get in the water
- Policy and clean water advocacy training — students learn organizing, not just observation.
- Transportation from partner schools included — inland San Diego County classrooms reach mountain and coastal sites.
- Hydrology fundamentals taught in the field — flow measurement, runoff tracing, pollution sampling on site.
- Climate change and coastal resilience modules connect science to San Diego County beaches your family uses.
Watershed Education across San Diego County — what families should know
Pathways from watershed education to ocean stewardship and Ocean Stewards after-school give San Diego County teens year-round environmental arcs.
Watershed Explorers overnight program in San Diego County gives San Diego County youth multi-day immersion from Cuyamaca to coast — commercial environmental overnight camps often charge $400–$600 per student. Un Mar charges $0.
Policy advocacy training in watershed curriculum teaches San Diego County youth how California coastal and water commissions affect their beaches.
Kumeyaay relationship with water in watershed curriculum centers Indigenous science for San Diego County Latino and Indigenous youth — not token land acknowledgments without hydrology depth.
Why San Diego County is our service area
Whether San Diego County is on the coast or across coastal and inland communities inland, we treat transportation as part of the program — not an extra parents must figure out. That's how you build real access, not marketing copy.
Parents in San Diego County often ask how a nonprofit can offer everything free. Answer: San Diego Foundation grants, community donors, and partners who believe San Diego County youth belong in the lineup — same as any other kid in San Diego County.
Program curriculum & how it works
- →Hydrology fundamentals
- →Cuyamaca to coast watershed tracing
- →Tijuana River cross-border watershed case study
- →Indigenous Kumeyaay relationship with water
- →Climate change and coastal resilience
- →Policy and advocacy for clean water
What's included — free for every youth
- ✓Overnight summer program option (Watershed Explorers)
- ✓Day-trip school field trips throughout the year
- ✓Bilingual curriculum materials
- ✓Transportation from partner schools
- ✓Certified naturalist educators
- ✓Family engagement opportunities
Why Un Mar de Colores (E-E-A-T)
Un Mar de Colores is recognized by partners including the San Diego Foundation, Surfrider San Diego, WILDCOAST, and school districts across San Diego County — not a pop-up program, a sustained movement.
What our community says
“"He used to approach new activities with extreme anxiety — to the point where sometimes we couldn't even get out of the car. Now he goes much deeper into the water."”
Cities we serve — pick your community
Un Mar de Colores runs watershed education across 27 San Diego County cities. Each city page covers local beaches, school partners, and how to enroll — start with the community closest to your family.
- OceansideCoastal city
- CarlsbadCoastal city
- EncinitasCoastal city
- Cardiff by the SeaCoastal city
- Solana BeachCoastal city
- Del MarCoastal city
- La JollaCoastal city
- Pacific BeachCoastal city
- Mission BeachCoastal city
- Ocean BeachCoastal city
- Point LomaCoastal city
- Sunset CliffsCoastal city
- CoronadoCoastal city
- Imperial BeachCoastal city
- Chula Vista10 mi to beach
- National City8 mi to beach
- Vista7 mi to beach
- San Marcos11 mi to beach
- Escondido17 mi to beach
- San DiegoCoastal city
- Poway14 mi to beach
- Fallbrook22 mi to beach
- Bonita10 mi to beach
- Lemon Grove10 mi to beach
- El Cajon14 mi to beach
- Santee17 mi to beach
- Spring Valley12 mi to beach
Frequently asked questions — Watershed Education
Is watershed education free for San Diego County schools?+
Yes — 100% free. Year-round day-trip field trips for partner Title I school districts across San Diego County classrooms include bilingual materials, certified naturalist educators, and transportation. Overnight Watershed Explorers summer cohorts are also free for San Diego County youth — no tuition or material fees.
Are there overnight watershed programs for San Diego County youth?+
Yes — summer Watershed Explorers overnight cohorts provide multi-day mountain-to-coast tracing. Commercial environmental overnight camps often charge $400–$600. Un Mar provides food, lodging, curriculum, and transport at zero cost for San Diego County families.
How do we enroll in Watershed Explorers from San Diego County?+
Contact Un Mar de Colores for summer overnight cohort enrollment or ask your partner Title I school districts across San Diego County teacher to book a year-round field trip. Priority for Title I schools and partner referrals in San Diego County.
Is watershed education bilingual in San Diego County?+
Yes — bilingual curriculum materials and field instruction are standard. In San Diego County, where about one-third of households are Spanish-speaking, educators deliver watershed science in English and Spanish.
What do students learn about climate change?+
Climate change and coastal resilience modules connect global patterns to San Diego County beaches — storm intensification, sea level rise, and advocacy for clean water policy. Students learn organizing tools, not hopeless anxiety.
Ready to get your child in the water?
Free means free. No hidden fees, no gear costs, no transportation charges for San Diego County participants.
All Un Mar de Colores programs are free for BIPOC youth across San Diego County. Reach out to enroll, volunteer, or support the movement.
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