Through Sept. 26: Chesapeake Changes, a natural history exhibit that focuses on the geology, geography, wildlife and human settlement in the 64,000 square mile watershed of the bay, Explorers Hall of the National Geographic Society, 17 and M streets NW, Washington.
Tomorrow: Monthly meeting of the Pasadena Sportfishing Club, Orchard Beach Firehall on Solley Road, 7:30 p.m.
Thursday-Sunday : Ocean City Tuna Tournament, Ocean City Fishing Center. For more information, call (410) 213-1121 or (1-800) 322-3065.
Saturday: Pasadena Sportfishing Club's first White Perch Rodeo Tournament, Sandy Point State Park. For more information, call 255-3678.
July 23-26: Ocean City Light Tackle Release Tournament, O.C. Marlin Club. For more information, call (410) 289-6363.
July 24: Essex Middle River Chapter Maryland Saltwater Sportfishermen's Association Bluefish Tournament based out of Sandy Point State Park near Annapolis, 7 a.m. to 3:30 p.m. Cash prizes for first-, second- and third-heaviest bluefish. For entry forms and more information, call 327-7923, 282-1262, 879-7643 or 686-7651.
July 28: Monthly meeting of the Maryland Fly Anglers, Ridge Garden Apartments clubhouse, Old Harford Road and Putty Hill Avenue, 7:30 p.m. Speaker will be Capt. Brady Bounds on fishing the Chesapeake Bay, the Potomac and lower Patuxent Rivers. The public is welcome. For more information, call (410) 825-2695.
July 30-Aug. 1: Ocean City Small Boat Tournament, O.C. Marlin Club. For more information.
Aug. 1: Maryland B.A.S.S. Federation Father/Son, Adult/Youth event on Potomac River.
Aug. 2-6: White Marlin Open, Harbour Island Marina, Ocean City. Entry deadline is Aug. 1 on site. For more information, call (410) 289-9229 or write White Marlin Open, P.O. Box 737, Ocean City, Md 21842.
Aug. 22: Maryland B.A.S.S. Federation Junior Mr. Bass event on Potomac River.
Thursday: DNR open house to discuss Maryland's black bear population and what direction the state's management plan should take. This is an informal, educational meeting and not a hearing on regulations or proposals. Seneca Creek State Park visitor center in Gaithersburg, Montgomery County, 6 to 9 p.m.
Thursday: 3-D Bowhunter Shoot at Stoney Creek Fishing and Hunting Club, 9090 Fort Smallwood Road, Pasadena, 4 to 8:30 p.m. Program offered every Thursday. For more information, call 544-4936 or 360-0872.
July 22: DNR open house to discuss Maryland's black bear population and what direction the state's management plan should take. This is an informal, educational meeting and not a hearing on regulations or proposals. Mount Nebo Wildlife Management Area in Oakland, Garrett County, 6 to 9 p.m.
July 23-25: Buck Fever! The Hunting Show, exhibition building, Howard County Fairgrounds, West Friendship. Seminars on bow hunting, black powder, firearms, venison cooking, etc. Featured speaker will be Dan Fitzgerald. Contests, exhibits, outfitters, taxidermists, cash prizes. Show opens at 4 p.m. Friday, 9 a.m. Saturday and 10 a.m. Sunday. Admission is $6, with children under 12 free. For more information, call (410) 922-5549.
Aug. 1: Maryland Bowhunters Society 3-D shoot, Tom Dodd's 3-D Range in Queenstown, 8 a.m. Profits donated to Bowhunters Defense Coalition. Trophies in all classes. For more information, call (410) 643-3508.
July 19, 24, Aug. 28: Canoe trip from Avalon area of Patapsco Valley State Park to Hanover Street Bridge in Baltimore. For more information, call 461-5005.
July 31-Aug. 8: Kent Narrows Power Boat Challenge Celebration. Offshore and hydroplane racing sanctioned by United States Offshore Racing Association and the American Powerboat Association. Offshore races on July 31; hydroplane classes race Aug. 7 and 8. For more information, call (410) 643-3912.
Aug. 6: Governor's Cup Yacht Race from Annapolis or Hampton, Va., to St. Mary's City. Overnight race, with full day of activities on Saturday. Details and entry forms available from Southern Maryland Sailing Association (410) 326-4364 or St. Mary's College (301) 862-0380. Deadline is July 28.
Aug. 8-11: Yachting Race Week at Solomons Island. For more information, call (203) 661-6945.
(Items for the Outdoors Journal may be mailed to Outdoors Editor, The Baltimore Sun, 501 N. Calvert Street, Baltimore, Md. 21278-0001. Please include time, date and location of events to be listed as well as a short description of planned activities and a telephone number for more information. The Outdoors Journal is published each Sunday in The Sun. Please mail listings four weeks before the date of the event.)