SANDY BEACH CLEANUP — Join the Sierra Club from 8:30-10:30 this morning for a cleanup of highway and coastal areas. Meet at the east restroom at Sandy Beach Park. Children must have signed waiver from parent/guardian. Call Deborah Blair, 955-4168.

THURSDAY WORKDAYS — Join the Nature Conservancy from 8 a.m.-4 p.m. Thursdays at the Honouliuli Preserve in Kunia for volunteer work trips requiring hiking and moderately strenuous activity removing invasive species, clearing trails, monitoring and repairing fences. Meet at Kunia baseyard. Contact Lynette Williams at www.lynette_williams.org or 621-2008.

CRATER OVERNIGHTER — Friends of Haleakala National Park will Saturday start a two-day service trip to weed thistle at Paliku Cabin. Call 808-248-7660.

WANTED: ALLIANCE LEADERS — Windward Ahupua'a Alliance looking to fill director and key volunteer positions by Oct. 1 to continue operations and qualify for grants. Call 247-6366, ext. 1, 224-4496, or visit www.waa-hawaii.org.

SIERRA CLUB BEER NIGHT — Betty Gearan will discuss curbside recycling from 5:30-7:30 p.m. Sept. 26 at Cassis, 66 Queen St.

KANE'OHE WETLAND PROJECT — Volunteers needed Oct. 13 to help the Sierra Club clear a wetland of mangrove to create habitat for endangered water birds at Marine Corps Base Hawai'i. Because the base is a secured military facility, volunteers must provide name and Social Security number in advance and bring a signed waiver. Call Deborah Blair, 955-4168.

CHUN'S REEF CLEANUP — Join Adopt-A-Beach Hawaii and Save The Sea Turtles International at noon Sept. 23 for Chun's Reef Beach highway and coastal cleanup. Trash bag, gloves and purified water provided; bring hat, sunscreen and beach shoes. Meet at 61-529 Kamehameha Highway, Hale'iwa. See www.seaturtlesinternational.com or call 637-2211.

ALA WAI CLEANUP — Join Sierra Club for Ala Wai Small Boat Harbor cleanup Sept. 29. Meet at 8 a.m. at the harbormaster's office. Bring sturdy shoes, hat, thick rubber gloves, sunscreen, water. Call Deborah Blair, 955-4168.