MAUI TRAIL WORK — The Maui Na Ala Hele Trails and Access Program will conduct volunteer trail work March 29 at Kula Forest Reserve and Polipoli Springs State Park to mitigate storm damage. Call 808-873-3509.

CRATER OVERNIGHTER — The Friends of Haleakala National Park will conduct cabin maintenance, invasive species removal or other work during March 15-17 service trip to Holua Cabin. Before signing up, go to www.fhnp.org, create an account, log in to the account to learn more and certify your readiness for service trips. For reservations, call Farley at 808-248-7660 or Matt at 808-876-1673.

GINGER BUSTERS — Help restore rain forest at Hawai'i Volcanoes National Park by removing non-native kahili ginger alongside Crater Rim Trail 9-10:30 a.m. March 22. Meet at Kilauea Visitor Center.

WORM COMPOSTING — Learn the basics of vermicomposting at 1 p.m. March 30 at Manoa Gardens Elderly Housing Community Center; $30 fees includes minibin, starter colony and manual. Call 382-0432 or e-mail waikikiworm@hawaii.rr.com.

MOKAUEA ISLAND PROJECT — Volunteers are needed April 19 to help Kai Makana and Mokauea Fishing Village Association create an educational center. Transportation to island by outrigger canoe; bring old shoes, hat, sunscreen, water, shorts and T-shirt. E-mail kaimakana@gmail.com to confirm date and receive waiver and directions to project.

OPERATION POLIHALE — The Division of State Parks and Leadership Kaua'i welcome volunteers to work with Pi'ina Hoku youth program in Operation Polihale 8 a.m. to noon April 12. Work includes cleanup, plant trimming, fixture repairs, painting, replacement of vehicle barriers at Polihale State Park. Contact Leadership Kaua'i at 808-246-8727.

ALA WAI CLEANUP — Join Sierra Club for Ala Wai Boat Harbor cleanup April 5. Meet at 8 a.m. at harbormaster's office. Bring sturdy closed-toe shoes, hat, thick rubber gloves, sunscreen, water. Call Deborah Blair at 955-4168.

WEED & POT CLUB — Maui Nui Botanical Garden's Weed & Pot Club meets from 8:30 to 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.

THURSDAY WORKDAYS — Join the Nature Conservancy from 8 a.m. to 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 base yard. Contact Lynette Williams at lynette_williams@tnc.org or call 621-2008.