QUARRY ROAD BLITZ — Windward Ahupua'a Alliance will hold its Kapa'a Quarry Road Blitz Contest 9-11:30 a.m. Dec. 9, with HI-5 container drop-off 8:45-11:45 a.m. at Kawai Nui Wayside Park. Contest open to six-person teams in two categories: middle school students; and high school and college students, adults from community groups, service clubs, churches and businesses. Cash prizes for the top three teams in each category. Volunteers also needed for setup and other tasks. Gloves, trash bags, tools, nets, rakes, sun screen, bug spray, bottled water, safety vests provided; includes breakfast, lunch. Advance registration and liability release required; register by 5 p.m. Dec. 7. Call Jim or Shannon Wood at 223-4481 or 247-6366, ext. 1.

BIG ISLE WASTE COLLECTION — Household hazardous waste collections will be available 7:30 a.m.-2:30 p.m. Saturday at the Hilo Transfer Station and Dec. 9 at the Kealakehe Transfer Station. Items accepted for disposal include used motor oil, brake fluid, antifreeze, all types of batteries, mercury thermometers, oil-based paints and stains, toxic garden supplies, poisons, unused or outdated medications; not accepted are controlled substances, business waste, explosives, flares, biological and infectious waste, compressed gas cylinders, fire extinguishers and nonhazardous material. For information on hazardous waste disposal from businesses and proper disposal of other hazardous materials, call Gregg Perry with EnviroServices at (808) 839-7222 or the county Recycling Section at (808) 961-8554.

PINE TREE CLEARING — Sierra Club Maui Group and Friends of Haleakala National Park will hold its annual Christmas tree clearing of young and introduced pines 9 a.m.-1 p.m. Dec. 9. Meet at gravel quarry pullout before the park entrance. Bring gloves, hand tools, water and snacks, and rain and sun protection; no chain saws allowed. Volunteers welcome to take home trees and greens. No reservations required; call (808) 572-9724.

NATIVE FOREST PLANTING — The Maui Dryland Forest Restoration Group will have a planting trip to the Auwahi native forest enclosure Dec. 16; meet at 'Ulupalakua Ranch Store. Hiking boots required; bring rain gear, two liters of water, lunch, sunscreen, hat. Register by e-mailing auwahi@yahoo.com or calling (808) 572-4471.

RESTORE WILD PLACES — Ka'ala Farm Inc. is seeking groups to assist in floral restoration of five west O'ahu sites — in Kalaeloa, Nanakuli, Wai'anae, Makaha and Makua. Groups should be willing to commit to two to 12 volunteer days a year. Contact Bruce Koebele at 696-4954 or holopono@pixi.com.

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

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

LIMAHULI GARDEN HELPERS — Limahuli Garden & Preserve of the National Tropical Botanical Garden in Ha'ena, Kaua'i, seeks volunteers 8-11 a.m. Thursdays to help restore native Hawaiian forest. Orientation 9:30-11 a.m. Saturday at garden headquarters. Contact Lea Taddonio at (808) 332-7324, ext. 228, or volunteer@ntbg.org.

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. (808) 873-3509 or mark.a.peyton@hawaii.gov.

SHOW TURTLES ALOHA — Monitor and protect green sea turtles on O'ahu's North Shore as a volunteer with the Show Turtles Aloha program. Spend a few hours a week educating beachgoers and caring for honu; on-site training provided. www.turtles.org/laniakea.

WAIMEA VALLEY DOCENTS — The Waimea Valley Audubon Center is training volunteers to work as teaching docents alongside field educators in school programs. Must commit from 8:30 a.m.-noon one day a week, through December. 638-9199, ext. 210.

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