Today: Bowhunter Jamboree and Maryland State 3D Championship at the 12th Precinct Pistol and Archery Club in Harwood, Anne Arundel County. Championship course will be up, with range opening at 8 a.m. There also will be displays and demonstrations, bow tuning clinics, 3D and novelty shoots. Admission is $3 plus range fees. Sponsored by 12th Precinct Archers and Anne Arundel Archers. Call (410) 551-8281, (410) 867-4232 or (301) 441-3537.
Aug. 15: Blue Marlin Tournament at Ocean City Fishing Center. Call (410) 213-1121.
Sept. 3: 34th Annual White Marlin Tournament at the Ocean City Marlin Club. Call (410) 289-6363 on Mondays and Thursdays between 9 a.m. and 3 p.m.
Sept. 3: Registration for Maryland hunter education course at Baltimore County Game and Fish, 4300 Northwind Road, 4-7:30 p.m. Classes to be held Sept. 9, 10, 16, 17 from 7 to 9:30 p.m. and Sept. 19 from 8 a.m. to noon. Call (410) 557-7140.
Sept. 9: Bow hunting classes sponsored by the Department of Natural Resources at Howard County Fairgrounds, Sept. 9, 6:30-10 p.m.; Sept. 11, 6:30-10 p.m.; Sept. 13, 8 a.m. to noon. Broad heads only. The instructor will be Philip Krista Sr. hunter safety instructor for Howard County. Pre-registration and $8 fee. For information and to register, call (410) 461-3007.
Through Aug. 31: Chesapeake Bay nature cruises to teach about the Chesapeake Bay ecology, water life and watermen. Three- or six-hour cruises daily out of St. Michaels. Reservations required. Call (800) 344-3255.
Today: Second day of Kent Narrows Powerboat Challenge. Five classes of hydroplanes and two classes of runabouts. Racing begins at 12:30 p.m. Spectator boats available. Call (410) 643-1791.
Aug. 15-16: Cambridge Classic sponsored by the Cambridge Power Boat Regatta Association. Seven classes of racers, corn roast and crab feast.
Aug. 15: Sailboat racing seminar at Chesapeake Sailing School in Annapolis from 10 a.m. to 4 p.m. Speaker will be Bruce Empey of Neil Pryde Sails Annapolis. Fee required. Call (410) 269-1594.
Today: Mountain Club of Maryland hike in Shenandoah National Park. Call (410) 760-6041 or (410) 391-9049.
Aug. 21-22: Maryland Fur Trappers 31st annual convention at Ruritan Community Park in Rohrersville. Trapping demonstrations, vendors selling trapping and other outdoors supplies, raffles, auctions. Grounds open at 7 a.m. Saturday. Call (410) 867-3181.