Arts and Crafts

"SUPERHERO" ACTIVITIES --2 p.m. Wednesday. For ages 7-11. Make "kryptonite," create comic book superheroes and solve the Riddler's riddles. Lexington Park Library, 21677 FDR Blvd., Lexington Park. Free. 301-863-8188.

Gardening

PLANT CLINICS -- Part of the "Ask a Master Gardener" program. Bring plant samples and/or photos and ask gardening questions. 10 a.m.-noon Saturday, Charlotte Hall Library, 37600 New Market Rd., 301-884-2211; and 11 a.m.-1 p.m. Tuesday, Leonardtown Library, 23250 Hollywood Rd. Free. 301-475-2846.

Literature

LEONARDTOWN BOOK DISCUSSION AND CELEBRATION --7 p.m. today. "No Country for Old Men," by Cormac McCarthy, and 10th anniversary book group celebration. Leonardtown Library, 23250 Hollywood Rd. Free. 301-475-2846.

Nature

RIVER RIDERS KAYAKING -- through Oct. 26. Lessons, rentals, guided trips and summer camp. Open to people of all abilities, from sunrise to sunset. Reservations required. Minimum ages and prices vary per activity. Greenwell State Park, 25420 Rosedale Manor Lane, Hollywood. 301-373-9775.

PORT REPUBLIC CANOE TRIP --4:30-7:30 p.m. Saturday. Guided trip on Parkers Creek led by American Chestnut Land Trust. Canoes, life vests and paddles provided. Meet at Warrior's Rest Sanctuary, 1920 Scientists Cliffs Rd., Port Republic. $10 requested, reservations required. 410-414-3400, http://www.acltweb.org.

CALVERT LOCALVORES --7-8:30 p.m. Monday. Discussion of promoting local agriculture, eating locally grown food and other green ideas. Calvert Library Prince Frederick Branch, 850 Costley Way. Free. 410-535-0291, 301-855-1862.

Special Events

BUILD YOUR OWN CANOE -- With guidance from an instructor, build a 16-foot wooden canoe or a 12-foot rowing skiff to own, 9 a.m.-5 p.m. on two consecutive Saturdays. Appointments are being taken for Saturdays, through December. A ready-to-paint boat is the finished product. For adults and children 10 and older. Youths 17 and younger must be accompanied by an adult. Canoe: $650; museum members, $600; skiff: $1,000, Calvert Marine Museum members, $950; sailing skiff, additional $800. Financial assistance available for youth organizations, schools or low-income youths. Call George Surgent at 410-586-2700. Calvert Marine Museum, 14200 Solomons Island Rd., Solomons.

"FISHING FOR A CURE" --2:30-8 p.m. Wednesday. To benefit the Infusion Center at Calvert Memorial Hospital, sponsored by Bunky's Charter Boats. Refreshments, bait and tackle provided. For adults and children 5 and older. Limited space available. Bunky's Marina, 14448 Solomons Island Rd. S., Solomons. $75. 410-535-8178, 410-414-4570.

Recreation

FISHING DAY CAMP -- Children 9-13 learn fishing skills during a one-week camp sponsored by the Coastal Conservation Association Maryland. 8:30 a.m.-4:30 p.m. weekdays and July 28-Aug. 1. Campers receive a rod, tackle, life vest and fishing guide. Includes a yearlong youth membership to CCA. Point Lookout State Park, 11175 Point Lookout Rd., Scotland. $150. 888-758-6580, 443-926-6156.

CLUB KAYAK -- Saturdays, through Oct. 25. Clinic teaches basic kayak skills, safety techniques and games. 11 a.m.-noon, ages 7-13; 2-3 p.m., ages 14 and older. Greenwell State Park, 25420 Rosedale Manor Lane, Hollywood. $60 per month. 301-373-9775, http://www.greenwellfoundation.org.

Theater

ONE-ACT AUDITIONS --7 p.m. today. Newtowne Players auditions for "In a Pickle," "Key Lime Pie," "Overtones" and "Two Moms." There are roles for three men and 13 women ages 20-60. Performance dates are Sept. 11-14. Contact Keith Williams at edrft_99@yahoo.com. Three Notch Theatre, 21744 S. Coral Dr., Lexington Park. Free. 301-737-5447, http://www.newtowneplayers.org.

"HE'S NOT MINE. SHE'S NOT MINE" --8 p.m. Saturday. Promise Productions performs a play about a troubled marriage, written and produced by Ray Quick. Doors open at 7 p.m. Mary Harrison Cultural Center, 2950 Chaneyville Rd., Owings. $30. 443-631-4509, http://www.promise-productions.net.