MAUI FOREST RESTORATION — The Maui Dryland Forest Restoration Group's next workday is 8 a.m.-4 p.m. Thursday. Volunteers and four-wheel-drive vehicles needed. Meet at 'Ulupalakua Ranch Store. Hiking boots that cover the ankles are required; clean all gear and boots of dirt that may carry seeds. Bring rain gear, water, lunch, sunscreen, hat. Register by July 19 at auwahi@yahoo.com or (808) 572-4471.

MAKIKI WAI HELPERS — The state Department of Land and Natural Resources and Hawai'i Nature Center need volunteers Saturday to make trail improvements, remove weeds and place native plants along a Makiki trail as part of the Makiki watershed awareness initiative. Water, gloves and tools provided; bring shoes or boots, plus long pants, long-sleeve shirt, insect repellent and lunch. Meet at the Makiki Forestry Baseyard at 9 a.m. See www.hawaiitrails.org/trail .asp?TrailID=OA+19+004&island= Oahu or call 973-9782.

WINDWARD WORKDAY — The Windward Ahupua'a Alliance and 'Ahahui Malama I Ka Lokahi are sponsoring the Great Kapa'a Valley & Kawai Nui Marsh Community Stewardship Workday, 8:30-11:45 a.m. July 30. Volunteers ages 11 and up are needed to help with check-in, operate a hospitality tent, pick up litter on the quarry road, clear the marsh view, plant native plants, and drive trucks to pick up bagged trash. Wear close-toe shoes with gripping soles, long-sleeve shirts, insect repellent, sunscreen, and a hat; breakfast, lunch, water and snacks provided, along with gloves and trash bags. Advance registration required: 247-6366, 223-5535 or info @waa-hawaii.org.

MANOA FALLS TRAIL WORK — The Sierra Club needs volunteers to move 100 tons of gravel onto the Manoa Falls Trail. Workdays are Aug. 6 and 21, Sept. 3 and 18, Oct. 1 and 23. Meet at 8 a.m. at Church of the Crossroads, 2510 Bingham St., to carpool. Work ends by 2 p.m., and refreshments follow. Contact Randy Ching at 942-0145 or oahurandy@yahoo.com.

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

NATURE LOVERS WANTED — Volunteers are needed to staff the Waimea Valley Audubon information kiosk for a minimum of three hours a day, once a week. Training is provided. Call 638-9199.

MORNING TRAIL SWEEPERS — Lyon Arboretum in Manoa seeks early morning walkers to hike the arboretum trails, clearing debris. Call volunteer coordinator Donna Schult at 988-0464. The arboretum also has volunteer work-party days on the first, third and fourth Saturdays of each month.

WEED & POT CLUB — The 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 beautification and maintenance work. Tools, gloves and drinking water provided; bring sunscreen; wear shoes.

For a free listing, write to For the Environment, P.O. Box 156, Wailuku, HI 96793; cwilson@honoluluadvertiser.com; or fax (808) 242-1520.