Events

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Saturday, May 9, 2026 (3)

May 9, 2026
April 18, 2026
Saturday

  • Earth Day Clean-Up Events

  • Apr 18, 2026 to May 9, 2026
  • Location: Various East Bay locations
  • Description:

    Join the Contra Costa Resource Conservation District for a series of clean-up events throughout the county. Each event has separate registration and time details. Clean-up parties are organized in:

    • Concord
    • Martinez
    • Brentwood/Antioch
    • Rodeo
    • Crockett
    • P
  • Created by: Sustainable Contra Costa
May 9, 2026
Saturday

  • Ridge-to-Ridge Challenge

  • May 9, 2026 from 9:00am to 1:00pm
  • Location: Walnut Creek Open Space, Shell Ridge
  • Description:

    The Ridge-to-Ridge Challenge is an annual fundraiser supporting Sustainable Contra Costa and its youth program, Sustainable Leaders in Action (SLIA). Each year, high school and college students collaborate to raise awareness about climate issues and

  • Created by: Sustainable Contra Costa