SANDY BEACH CLEANUP — Join the Sierra Club 8:30-10:30 a.m. March 18 for Sandy Beach highway and coastal cleanup. Closed-toe shoes required. Bring water, hat and sunscreen; bags, gloves provided. Participants under 18 must have waiver signed by parent or guardian. Meet at the east restrooms. Call 394-2898.

CANOE CLUB PROJECT — Kane'ohe Canoe Club will hold a "Clean Up the Community Day" 9 a.m.-3 p.m. March 18 at He'eia Pier. Wear covered shoes, pants and long-sleeved shirt; gloves, rubbish bags, lunch provided. Club registration also will be conducted. Contact Sandra Kalahiki at 429-9333 or sk1pass@hotmail.com.

CRATER OVERNIGHTER — Friends of Haleakala National Park seeks volunteers for March 24-26 weeding trip at Paliku and Crystal Cave washout. Accommodations at Paliku Cabin. Call (808) 876-1673.

WHALE COUNT — The Hawaiian Island Humpback Whale National Marine Sanctuary is seeking volunteers March 31 to assist with the Ocean Count, which collects data on whale sightings and behavior at more than 65 sites off O'ahu, Kaua'i and the Big Island. To register, call 397-2651, ext. 253, for O'ahu; (888) 55-WHALE [(888) 559-4253], ext. 253, for the Big Island; and (808) 246-2860 for Kaua'i.

POUHALA 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. March 17. 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.

PU'U WA'AWA'A SERVICE TRIP — The Sierra Club is organizing volunteer service trips to Pu'u Wa'awa'a on the Big Island on March 24-31. Activities include planting, invasive-species control and fence repair, with time for hiking in a forest bird sanctuary. Limited to 12 people; must be Sierra Club members. Cost is $150 ($100 for students) and includes transportation, food and lodging. Contact Janice Marsters: janicem@lava.net or (808) 988-3899.

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.

RESTORE WILD PLACES — Ka'ala Farm 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: 696-4954 or holopono@pixi.com.

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