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Orange County Sierrans Section

Orange County Sierrans Section

85 Events

Welcome Outdoor Enthusiasts! We are a Hiking, Camping, Skiing, and Adventure Vacationing Group! We are a Section of the Sierra Club, whose mission is to Explore, Enjoy, and Protect the Planet. Come Explore our Site and Check out our Events!

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Upcoming Events
Past Events

Past Events

  • Sat, 19 Sep 2026 • 03:00 PM

    OCSS @ 50 Turtle Rock Picnic

    Turtle Rock Park
  • Sat, 22 Aug 2026 • 08:30 AM

    O: Canyon Park, Costa Mesa Urban Hiking

    Canyon Park
    4+ Interested
  • Sat, 15 Aug 2026 • 04:00 PM

    Presentation by Barefoot Joel Robinson -Save Orange Hills as a Park-

    15500 Sand Canyon Ave, Irvine, CA 92618, USA
    6+ Interested
  • Tue, 11 Aug 2026 • 02:00 PM

    Morro Bay State Park Campout

    Morro Bay State Park
    7+ Interested
  • Tue, 09 Jun 2026 • 06:00 PM

    O: Fullerton Evening Hike

    501 Lakeside Dr, Fullerton, CA 92835-1509, United States
    4+ Interested
  • Sun, 17 May 2026 • 08:30 AM

    O: Bolsa Chica Ecological Reserve Newcomer Hike

    Bolsa Chica Street and Brightwater Drive, Huntington Beach, CA 92649, USA
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