Join more than 15,000 members in Imperial and San Diego Counties.

Take our Membership Survey HERE.  Your opinions are important to us.



Giving Tuesday

#GivingTuesday is a global giving movement that has been built by individuals, families, organizations,
businesses and communities in all 50 states and in countries around the world. Millions of people have
come together to support and champion the causes they believe in and the communities in which they live.

2018 Sierra Club Calendars

Sierra Club 2018 Wilderness Wall Calendar

Wilderness Wall Calendar  Member Price $13.45

Sierra Club 2018 Engagement Desk Calendar
Engagement Desk Calendar Member Price  $14.35 

Send your holiday best wishes with Holiday Greeting Cards from the Sierra Club.

Sierra Club Holiday Gift Card - 3 Assorted Packs of Four Cards

Choose from Winter Birds 2 Holiday Cards or Winter Wildlife Holiday Cards
You will receive Twenty assorted 5″ x 7″ holiday cards (5 each of 4 designs) plus envelopes in a decorative box.

Order HERE

The Yosemite assortment has SOLD OUT – we are sorry for any inconvenience.  We will not be able to restock for 2017.

Visit the Sierra Club Store for great prices on backpacks, bags, caps, water bottles, travel mugs, coloring books and other great items.

Help support the Sierra Club Foundation. Donate your car/boat/motorcycle during the Season of Giving, and you may qualify for a 2017 tax deduction!

Fall into the spirit of giving. Donate Your Vehicle to the Sierra Club Foundation


$70 to Enter a National Park? Say NO!

Instead of keeping our parks accessible to all, the Trump administration wants to increase park fees by more than double, while making it easier and cheaper for the fossil fuel industry to drill. Say no way! Read More

$70 to Enter a National Park? Say No!

Sign the petition!

Sierra Club Joins With Conservation Groups to Challenge the Border Wall Construction

San Diego Border Wall

On September 14, a coalition of national conservation groups including Defenders of Wildlife, Sierra Club and Animal Legal Defense Fund filed suit against the Department of Homeland Security (DHS) challenging border wall construction activities that threaten wildlife and public lands in San Diego and Imperial Valley, California.

Learn more here.

Looking to get active?  Want to help protect our natural world and communities?

Let us help you find your perfect volunteer opportunity.  Just fill out our volunteer form HERE and one of our Coordinators of Volunteers will get right back to you and get you going!

HiSierran Newsletter Online – Click HERE

Read the HiSierran, Sierra Club San Diego's Quarterly Newsletter


2017 Cross-country Ski Trip to Mammoth

Cross-country Skiing Adventures

Join us in Mammoth for our annual Thanksgiving cross-country ski weekend from November 22-26. As of Thursday, November 16, Mammoth is currently receiving snow and the conditions will make for a great weekend! If not, there is a lot of great hiking in the area. If alpine skiing is your pleasure, the mountain is currently open as well.

Learn more

2018 Wilderness Basics Course

Wilderness Basics Course San Diego

The Wilderness Basics Course is a hiking and backpacking course offered once a year. Starting in January, students attend lecture classes every Tuesday night for ten weeks and explore San Diego County with a Day Hike and four Weekend Outings – a Car Camp, a Mountain/Desert Backpack, a Land Navigation Backpack and a Snow Backpack.
Registration is now open for the
2018 Wilderness Basics Course

Learn More

Visit the Full Activities Calendar

Visit the Full Hiking and Biking Calendar

2018 Whale Watching Trip

Whale Watching in San Diego

A Benefit Event for Sierra Club San Diego

Sunday, January 14, 2018   10:00 AM – 1:00 PM

Adult $55.00   Child (6-13yrs) $30.00

Purchase Tickets Here

Join Sierra Club San Diego on an outing – where do you want to go? The choice is yours!