Through Sept. 26: Opening of 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, D.C.
Today: Chesapeake Sportfishing Seminar/Show, sponsored by Solomons Charter Captains' Association and Maryland Saltwater Sportfishermen's Association, Solomons Holiday Inn. Show opens at 10 a.m. For more information, call (410) 326-2670.
Today: Fly-casting classes for beginners and novices at the Gun Shack in Mount Airy, 8 a.m. For more information, call (301)
Friday, April 6, 8, 14, 15: Hunter safety education course offered Baltimore County Game & Fish, 3400 Northwind Road. Registration from 4 p.m. to 7 p.m. on Friday. For more information, call 557-7140.
Saturday and April 4: Annapolis Safety at Sea Seminar at the Naval Academy, sponsored by the Naval Academy Sailing Squadron, the Annapolis Chamber of Commerce, the U.S. Sailing Association and Cruising World magazine. For more information on classes and tickets, call 410-268-7676.
Wednesday: The Mountain Club of Maryland hike in the Avalon and Orange Grove areas along the Patapsco. For more information, call 242-8465.
(Items for the Outdoors Journal may be mailed to Outdoors Editor, The Baltimore Sun, 501 N. Calvert St., 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 including area code for more information. Outdoors Journal is published each Thursday in The Sun and The Evening Sun and each Sunday in The Sun.)