WAIKIKI BEACH HELPERS — The Waikiki Improvement Association and the Japan-America Society need volunteers for a Waikiki beach cleanup from 7-9 a.m. Saturday. Meet at the Duke Kahanamoku statue at Kuhio Beach Park; continental breakfast provided by Hilton Hawaiian Village Beach Resort & Spa. Register by today by calling 923-1094, ext. 6.

POUHALA MARSH RESTORATION — The Hawai'i Nature Center is restoring Pouhala Marsh in Waipahu. Volunteers are needed to pull pickleweed from 8:30 to 11:30 a.m. Saturday. Bring work gloves, water, hat, sunscreen, towel and change of clothes; covered footwear and long pants required. Contact Pauline Kawamata at 955-0100, ext. 18.

ALIEN ALGAE — Volunteers are needed from 8 a.m.-noon Saturday to remove alien algae at Hilton Hawaiian Village. Bring snorkeling gear if you plan to go into the water. Snack and lunch provided. Contact Signe Opheim at 779-2616 or e-mail opheim@hawaii.edu.

WORM COMPOSTING — Learn the basics of vermicomposting at 9:30 a.m. Saturday at Christ Church Uniting, 1300 Kailua Road; $30 fee includes mini-bin, starter colony and manual. 382-0432 or waikikiworm @hawaii.rr.com.

KANE'OHE WETLAND PROJECT — Volunteers are needed Saturday 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 Annette Kaohelauli'i at 235-5431.

HALEAKALA VOLUNTEERS — Haleakala National Park has a variety of volunteer opportunities for youths, high school classes, college students and adults. Opportunities range from four hours to several months and include visitor center and naturalist docents, receptionist, cultural demonstrator, sunrise visitor assistant, trail maintenance and internships. For more information, visit www.nps.gov/hale, call (808) 572-4487 or e-mail HALE_VIP_Coordina tor@nps.gov.

WEED & POT CLUB — Maui Nui Botanical Garden's Weed & Pot Club meets from 8:30-10:30 a.m. Wednesdays at 150 Kanaloa Ave. in Kahului to weed, rake, trim or transplant nursery plants, and perform other beautification and maintenance work. Tools, gloves and drinking water provided; bring sunscreen, wear shoes.

KANAHA POND — Join Native Hawaiian Plant Society volunteers at Kanaha Pond Wildlife Sanctuary on Maui every Thursday from 7:30-11 a.m. for weeding and brush-cutting; work also done at Maui Ocean Land Trust wetlands. Call (808) 572-6338.

MAUI TRAIL CREWS — Na Ala Hele volunteers meet Saturdays, Sundays and Tuesdays to build and clean Maui trails. Leave from Kahului Baseyard at 7:30 a.m.; bring lunch, water and sturdy shoes; tools and transportation provided. Call (808) 873-3509 or e-mail mark.a.peyton @hawaii.gov.

WEED WARRIORS — Student volunteers can help the Maui Invasive Species Committee survey and control invasive weed populations, learn scientific protocol, and assist with conservation efforts. Catch coqui frogs at night on June 19. Reservations and parent approval required. Contact Shannon Wianecki at (808) 573-6472 or hoikeinfo@yahoo.com.

Send listings to: For the Environment, P.O. Box 156, Wailuku, HI 96793; cwilson@honoluluadvertiser.com; or fax (808) 242-1520.