Peterson Canal hike, noon today, 6-mile scenic hike in Bath takes about 2 1/2 hours. Meet across from the boat launch to the New Meadows Lake on Old Brunswick Road. Snowshoes are required. For more information and to confirm conditions, go online to www.kennebecestuary.org or call Ed Benedikt at 442-0445. Sponsored by the New Meadows Lake Association, Kennebec Estuary Land Trust and Bath Trails. 

NRA basic pistol course, 10 a.m. to 6 p.m. Feb. 20, register by today, Lake Thompson Fish & Game in Oxford, $125, includes books, firearms and ammunition, and lunch. The shooting portion will be held indoors. The course meets the requirements for state concealed weapon permit. Register by calling Western Maine Property Protection, 739-9774, or e-mail westernmaineproperty [email protected] 

Guided full moon hike, 6 to 8 p.m. Wednesday, Hidden Valley Nature Center, Jefferson. Wear snowshoes (HVNC has some to rent) and bring a head lamp. the cozy yurt. Please pre-register, especially if you want snowshoes, by calling 586-6752 or e-mailing [email protected] For more information, go to www.hvnc.org. 

York County Audubon Society field trip to Plum Island and vicinity in Massachusetts on Wednesday. The group will start at the Joppa Flats Audubon Center in Newburyport, Mass., at 8 a.m. and will end the trip by 3 p.m. The field trip is free, but a small donation to the Audubon Center will be welcome. Bring a bag lunch. Carpooling is encouraged. FMI: Scott Richardson at 698-4461. 

Annual meeting, Great Works Regional Land Trust, 5:30 p.m. to 8:30 p.m. Thursday at the North Berwick Community Center, celebrating 25 years of land conservation in the Berwicks, Eliot, Ogunquit and Wells. Tickets are $7.50, $20 per family for dinner and dessert. RSVP to 207-646-3604. For more information, go online to www.gwrlt.org. 

Looking ahead

Ice-climbing talks and demonstrations on Bethel’s 100-foot WinterFest ice tower, 11 a.m. to 1 p.m. Feb. 22 and Feb. 25. Ice climber Bob Baribeau will demonstrate how to climb safely, explain what equipment is needed and share a little about the history of the sport. Events are weather permitting, so check at www.bethelwinterfest.com or call the Bethel Area Chamber of Commerce at 824-2282. 

School vacation programs for kids, 10 a.m. to noon Feb. 22 and 24, Marine Environmental Research Institute, 55 Main St., Blue Hill. Marine life sculpting and drawing with Rebekah Raye on Feb. 22, ages 8 and older, $25. Lobsters — up close, ages 6-10 years old, $15. To register, please contact MERI at 374-2135 or e-mail [email protected] For more information, go online to www.meriresearch.org. 

Handgun safety class, sponsored by the Gardiner Sportsmen’s Club, 6 to 9 p.m. Feb. 23. This class meets the requirements to qualify for a concealed firearms permit. The cost is $60. Call 441-7870 to sign up. 

Kittery Trading Post Kids Derby, 8 a.m.-noon, Feb. 25, Range Ponds State Park, Poland Spring; limited to children age 12 and under; free entry for derby, with $1.50 park admission fee for those ages 12-64. Run in cooperation with the Maine Department of Inland Fisheries and Wildlife. The first 500 children to register will receive a free ice-fishing tip-up. To learn more or to register, go to www.icefishingderby.com/maine/kids-derby/ 

Hunter safety course, sponsored by Fairfield VFW Post 6924, 6 to 9 p.m. March 1 and March 3, and 8 a.m. to 4:30 p.m. March 5. Call Don Perrine at 660-6382 to register. 

Introduction to winter camping, March 11-13, Hidden Valley Nature Center in Jefferson. Participants will receive a detailed gear list before the class. It will start on Friday with snowshoeing or skiing into the yurt, a comfortable, warm winter shelter with a woodstove; Saturday and Sunday will be spent mostly outside. Topics include trip planning, clothing, safety, travel, shelter and food. Cost is $125 for HVNC supporters, $150 for all others. Register with David Butler at www.canoemaine.com or by calling 877-632-2663. 

Maine Guide Training Program, Skowhegan Community Center, 39 Poulin Drive, Skowhegan, April 14, 15, 16 and 17. The course prepares students for taking the state’s licensing exam for recreational, hunting and fishing guides. The cost is $475 per person, and $200 deposit is required upon registration. For more information or to register, contact Carroll Ware at Fins and Furs Adventures at 474-5430. 

Ongoing

Walk-On Adventures, L.L.Bean, Freeport. Snowshoeing, 9:30 a.m. to noon, and cross-country skiing, 1 to 3 p.m., every Saturday and Sunday through March, conditions permitting. Equipment provided. $15. Call 1-877-755-2326 or stop by the information desk in the Discovery Lobby. 

Portland Trails Winter Walks, Presumpscot River Preserve, Saturday; Riverton Trolley Park, March 5; Presumpscot River Trail, March 19. Register by e-mailing [email protected] or calling 775-2411. Portland Trails has snowshoes available (free for members, $5/non-members) that can be reserved. FMI:www.trails.org. 

The Portland Water District invites preschoolers to join it for environmentally themed stories, activities and crafts. Sessions include: Incredible Insects, Friday; Plants and Their Parts, March 18; Fun with Frogs, April 15. Programs run 10 a.m. to noon at the Sebago Lake Ecology Center in Standish. To register, e-mail [email protected] or call 774-5961, ext. 3319 or 3320. Donation supports loon preservation. Scholarships are available and snacks are provided. 

Weekly Bird Walk, 8 a.m. Thursdays at Gilsland Farm, off Route One, Falmouth, $5 for Maine Audubon members, $8 for nonmembers. Bring binoculars and a field guide and meet in the visitor center parking lot. FMI: Call 781-2330, ext. 209. 

Snowshoeing at Inland Woods/Pine Ridge Trails in Waterville, 5:30 p.m. Wednesdays. Head lamps required. Meet at the trail head behind Inland Hospital, 200 Kennedy Memorial Drive. FMI: e-mail [email protected] or call 861-3292. 

Bird Walks, 1 to 2 p.m. Wednesdays through March 9, George B. Dorr Museum of Natural History at College of the Atlantic, 105 Eden St., Bar Harbor. FMI: e-mail [email protected] or call 288-5395. 

Tracking Walks, 10 to 11 a.m. Thursdays through March 10. Learn to identify tracks and signs of creatures. Meet at the George B. Dorr Museum of Natural History, College of the Atlantic, 105 Eden St., Bar Harbor. FMI: e-mail [email protected] or call 288-5395.