Sierra Club LogoOrange County Sierrans Section


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Conditioning Hikes


Sierra Club 

Discover the Great Outdoors...
...In Your Own Backyard!

Welcome to the Orange County Sierrans Section (OCSS)! While supporting the Sierra club in their environmental issues, our primary focus is on exploring and enjoying the wild areas around us. Orange County is an area rich in protected regional and wilderness parks and hundreds of miles of trails for us to explore!
We welcome people of all backgrounds and ages. You do not need to be a Sierra Club Member to take part in our many outings and activities. From hiking and skiing to movie nights and dances, you are sure to find an event you will enjoy. Many new friends await you!

20s, 30s, & 40s
Meet people in the 20's, 30's, and 40's age range!



             GET INVOLVED! COME JOIN US...

Join the Sierra Club today!!

March - April Newsletter
now online


Monday, April 11, 2016 6:30 PM

Meet / Greet / Get Outdoors

This is the place and this is the time. Outings leaders come and plan your next event, find co leaders and ideas. Want to lead your own hikes? We have something for you! Attend Leadership Training Seminar held twice a year. Want to plan a social event? Yes! You do not need to be a Sierra Club leader to plan social events. We can even help you start your own committee, backed by Sierra Club Orange County Sierrans or any other group/section with full use of our resources. Backpacking committee? There you go! If you are a traveler and would like to present a program at one of our meetings, we can do that. Or how about leading your own International trip? We have full resources to get you started. Come and meet the leaders and find out all about the Sierra Club and pick up a Schedule of Activities. Newcomers welcome. Bring a friend, your ideas and a calendar. Refreshments served. Join us at REI Tustin, 2962 El Camino Real, Tustin, CA 92782. Hike on over to the Community Room. See you there!

Featured Events

Ski Season
Spring Combo Getaway bus trip to Mammoth Lakes

April 8-10 2016

Nini Leader


Costa Rica
October 1-14, 2016

Little Hikers

Little Hikers


Monday, May 9, 2016 6:30 PM

Meet / Greet / Newcomer / Special Event

Come and discover the Sierra Club. Be a part of the largest grassroots environmental organization in the country. Sierra Club outings provide environmentally friendly outdoor adventures from Costa Mesa to Costa Rica for all ages. Come and meet representatives and leaders from beach walks to peak bagging. Table displays, exhibits, refreshments. Join Sierra Club $15 Special Offer, free gift. Meet at the Costa Mesa Community Center, 1845 Park Ave, Costa Mesa.


More Events Coming Soon!