HANAUMA BAY — The Friends of Hanauma Bay group needs help 8:30-11:30 a.m. Jan. 15 cleaning up the beach, park and Kalaniana'ole Highway from Keahole Street to the Blow Hole. Meet in upper picnic area next to visitor center. Call 395-1217.

WINDWARD WORKDAY — Work off holiday weight gain at the Windward Ahupua'a Alliance's landscaping workday 8:30-11:30 a.m. Saturday at the Kawai Nui Wayside Park, opposite the Model Airplane Field on Kapa'a Quarry Road. Gloves, tools, trash bags and lunch provided. HI-5 cans and bottles will be collected during the workday, with proceeds going to remove invasive species from ditches and ponds along the quarry road. Call 247-6366, ext. 2#.

PRESERVE KA'ENA POINT — Join the Sierra Club on Saturday in removing invasive plants to protect the coastal ecosystem at Ka'ena Point Natural Area Reserve. Call 538-6616 or see www.hi.sierraclub.org.

MICONIA SURVEY — The O'ahu Invasive Species Committee needs help 8 a.m.-3:30 p.m. Jan. 14 to survey the invasive plant Miconia calvescens. Bring pants, long-sleeve shirt, water, lunch, rain gear; footwear provided. Meet at Church of the Crossroads. Reservations required; e-mail joshuafi@hawaii.edu or call 292-6769.

ADOPT-A-BEACH CLEANUP — Volunteers are needed Jan. 14 for a beach cleanup at Chun's Reef, sponsored by Save The Sea Turtles International, Adopt-A-Beach Hawai'i, the National Recycling Coalition, Hale'iwa Joe's, Surf & Sea, Breaker's Hale'iwa and Turtle Bay Resorts. Meet at noon at 61-529 Kamehameha Highway; trash bags, gloves, water provided; bring hat, sunscreen, beach shoes. Call 637-2211, or see www.seaturtlesinternational.com or www.adoptabeachhawaii.com.

CRATER OVERNIGHTER — Volunteers are needed Jan. 14-16 for a Friends of Haleakala National Park service trip to remove non-native plants at Kapalaoa Cabin. Call (808) 876-1673.

HUMPBACK WHALE COUNT — The Hawaiian Islands Humpback Whale National Marine Sanctuary will hold its annual whale count Jan. 28, Feb. 25 and March 25 at 65 sites on O'ahu, Kaua'i and the Big Island. To register, call (888) 559-4253, ext. 253, on the Big Island; (808) 246-2860 on Kaua'i; 397-2654, ext. 253, on O'ahu. For more information, see www.hawaiihumpbackwhale.noaa.gov.

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 weed, rake, trim or transplant nursery plants and perform other work. Tools, gloves and drinking water provided; bring sunscreen, wear shoes.

KANAHA WILDLIFE REFUGE — Weekly volunteer workdays at Maui's Kanaha Pond Wildlife Refuge, 7:30 a.m. Thursdays. Call (808) 572-6338.

MORNING TRAIL SWEEPERS — Lyon Arboretum in Manoa seeks early morning walkers to hike the arboretum trails, clearing fallen palm fronds and other debris from paths. Call volunteer coordinator Jill Laughlin at 988-0461. The arboretum also holds volunteer workdays on the first Saturday of each month.

WILIWILI SEED PROJECT — Lyon Arboretum needs volunteers to prepare seeds for storage, as part of its Wiliwili Seed Conservation Project in response to the spread of gall wasps. Training will be provided. Contact Jill Laughlin at 988-0461.

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