MAUI OCEAN TRAINING — Free workshops to learn about humpback whales, Hawaiian culture, marine life, geology, stewardship and ocean safety; sponsored by Hawaiian Islands Humpback Whale National Marine Sanctuary, with participants qualified to volunteer at shore-based snorkel sites, on board tour vessels and with kayak tours. All meetings 4:30-7 p.m.; Kihei sessions Tuesdays, through Nov.14, at sanctuary education center; Lahaina sessions Wednesdays, through Nov. 15, at Wharf Cinema Center conference room. To register, contact Emily Carlson at (808) 879-2818 or emily.carlson@noaa.gov.

KAWAI NUI PROJECTS — 'Ahahui Malama i ka Lokahi and Kailua Hawaiian Civic Club conduct regular service projects to restore ethnobotanical and cultural features at Kawai Nui Marsh state park. Next project dates are 8:30 a.m.-12:30 p.m. Saturday and Oct. 21. Bring lunch, water, rain gear, bug repellent, gloves, tools. Call Chuck "Doc" Burrows at 595-3922 or Rick "Kaimi" Scudder at 589-2963.

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.

SUNSET BEACH CLEANUP — The North Shore Outdoor Circle will hold a Sunset Beach cleanup 8 a.m.-noon Oct. 28. Meet at 'Ehukai Beach Park; wear gloves and shoes; bring broom, rake and pruners. Call 638-7075.

MARSH RESTORATION — The Hawai'i Nature Center is restoring Pouhala Marsh in Waipahu. Volunteers are needed to pull pickleweed and mangrove 8:30-11:30 a.m. Oct. 28. 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.

MAKIKI WAI HELPERS — The Department of Land and Natural Resources and the Hawai'i Nature Center are looking for help 9 a.m.2 p.m. Oct. 28 to make trail improvements, remove weeds and plant native plants along the Makiki trail, as part of the Makiki Wai (Watershed Awareness Initiative). Bring long pants, long-sleeved shirt, shoes or boots, gloves, insect repellent, water and lunch. Meet at the Makiki Forestry Baseyard. Call 973-9782 or check the Web site www.hawaiitrails .org/trail.asp?TrailID=OA+19+004 &island=Oahu.

SAVE A SHEARWATER — Volunteers are needed this month in the mornings and evenings to help feed and weigh shearwater chicks. Contact Lydi Morgan at Hawai'i Audubon Society at 528-1432, or e-mail hiaudso@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.

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 Hawaiian 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 to 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@honolulu advertiser.com; or fax (808) 242-1520.