Celebrate
the Earth with the County of San Diego
We hope you enjoy these activities that
celebrate our beautiful planet and help you care for our natural
environment. We look forward to celebrating with you via this site all
year long.
#COSDEarthDay
Sustainability is core to our County mission. We’ve made it one of the components of our new overarching County vision: a just, sustainable and resilient future for all and it’s one of the central values we dedicate ourselves to as an organization. From big to small things, we are committed to making a difference for the environment.
Earth Month Events
Story Trails at San Diego County Parks - Earth Month
Throughout the month of April, stroll along a story trail! San Diego County Library has placed colorful pages of children’s books on signs for our staff to post on trails at some of our most family-friendly parks during Earth Week!
FixIt Clinic
Saturday, April 11, 2026
10:00 AM – 1:00
PM
8735 Jamacha Blvd, Spring Valley, California, United
States
Learn more & register
Watershed Warriors: Ramona – Hunter Street Sweep
Saturday, April 4, 2026
9:00 AM – 11:00 A
201 Hunter
St, Ramona, California 92065
Register
Watershed Warriors: Pine Valley Library Community Cleanup
Saturday, April 11, 2026
9:00 AM – 11:00
AM
Pine Valley Branch Library, 28804 Old Highway 80, Pine
Valley, CA 91962
Register
Alternative Spring Break at Louis A. Stelzer County Park
Habitat
Restoration
Wednesday, April 1, 2026
9:00am -
12:00pm
11470 Wildcat Canyon Road, Lakeside, CA 92040
Alternative Spring Break at Oakoasis County Preserve
Trail
and Tree Maintenance
Thursday, April 2, 2026
9 a.m. - 12 p.m.
12620 Wildcat Canyon Road, Lakeside, CA 92040
Sunday Family Fun Day
Sunday, April 5, 2026
10:00am -
12:00pm
San Elijo Lagoon Ecological Reserve
2710
Manchester Ave, Cardiff, CA 92007
Details
Star Party at Oakoasis
Saturday, April 11, 2026
7:00pm &
Sunday April 12, 2026
8:30pm
Parks-After-DarkStar-Party
Oakoasis County
Preserve, 12620 Wildcat Canyon Rd, Lakeside, CA 92040
Connecting with Nature Meditation and Qi Gong
Sunday, April 12, 2026
10:00am -
11:00am
San Dieguito County Park - Lower Park, 15936 El Camino
Real, Rancho Santa Fe, CA 92067
For more information: (858) 282-4616
San Dieguito Golden Hour Hike
Sunday, April 12, 2026
6:30pm -
7:30pm
Trail-Activities-&-Hikes
San Dieguito County Park (Lower Park / Butterfly Garden /
Ponds), 15936 El Camino Real, Rancho Santa Fe, CA 92067
Plant The Park Day!
Saturday, April 18, 2026
8:00am -
12:00pm
Lindo Lake County Park, 12660 Lindo Ln, Lakeside, CA 92040
In celebration of Earth Day, come to Lindo Lake County Park for this free, family-friendly event! Enjoy a beautiful day and learn more about community stewardship and conservation. Participate in interactive activities including crafts and a volunteer park beautification project.
Celebrate Our Earth at Any Time With These Fun
Activities!
What will you do to support our Earth? Learn how to reduce your impact and become a better 'Earthling'!
Thinking About an Electric Car?

Learn more at our EV Consumer Website.
Ask a Recycling Specialist
Want to learn tips and tricks about recycling from a County of San Diego recycling specialist? Check out this video!
How to Properly Plant a Tree
Learn the importance of replanting native trees to replenish the local tree canopy. Using a 5-gallon pot sample first, find the topmost root, then dig a shallow and wide planting hole, finally place the tree in. Don't forget to water your new plant!







