Join 3.8 million grassroots supporters in the fight for environmental justice by becoming a member of the Sierra Club. For each new member who joins the Sierra Club via this online form, the O‘ahu Group will receive 100% commission of initial membership dues. Member benefits include automatic local membership, a one-year subscription to Sierra Magazine and the Hawai‘i Chapter’s Mālama i ka Honua newsletter, and opportunities for local outings, activism on O‘ahu Group issues, and more.

For questions about your membership, please contact membership services at our National headquarters at or (415) 977-5500.