Sports Boating/SailingBOATING COURSEwith Coast Guard Auxiliary 02-01 starts March 7 at Washington Sailing Marina, Alexandria. 202-547-8558.

BOATING SAFETYcourses with Coast Guard Auxiliary starts March 10 and April 14 at Bladensburg Waterfront Park. 301-779-0371.

ContinuingU.S. COAST GUARD AUXILIARIES and U.S. Power Squadrons offer power and sail courses. 800-336-2628; in Virginia, 800-245-2628. DivingBEGINNERS SCUBA COURSESstart March 9 and March 23 at Mount Vernon Recreation Center. 703-619-1500.

FishingFISHING SHOWSaturday 10 to 5:30 by National Capital Trout Unlimited at Bethesda-Chevy Chase High School. Exhibits, speakers, clinics. $10, ages 16 and younger free. 202-966-5923. Flag FootballMARYLAND ADULT MEN'S LEAGUESneeds Montgomery and Prince George's County teams and players. 301-758-2603.

Hiking/Camping

TripsCAPITAL CLUB Saturday, Snickers Gap to Frogtown ($28); 202-686-1540 or 703-765-5066. Bus for most trips leaves 16th and I NW at 8 a.m. with suburban stops.

CENTER CLUB Saturday, to White Oak Canyon; 703-597-9990. Saturday, to Wheaton Regional Park; 301-937-1498 or 301-773-7527. Sunday, to Great Falls; 703-931-2526 or 301-977-6561. Sunday, to Bull Run Mountain; 703-966-6195 or 703-366-3050.

MOUNTAIN CLUB OF MARYLANDWednesday, to Chimney Rock; 410-796-2722.

NORTHERN VIRGINIA CLUB Saturday, to Maryland Heights. Sunday, to Kennedy Peak. Activities tape: 703-440-1805.

POTOMAC APPALACHIAN TRAIL CLUB Tape: 703-242-0965.

SIERRA CLUB Saturday, to Fairfax County Cross County Trail. Saturday, to Monocacy Area. Saturday, to Lands of Rolling Ridge Foundation. Activities tape: 202-547-2326.

WANDERBIRDS Sunday, to Snowy Mountain ($23); 301-294-1356 or 540-542-6187. Bus for most trips leaves 17th and K at 8 a.m. with suburban stops.

Motorcycles

ContinuingMOTORCYCLE SAFETY FOUNDATION offers beginner and advanced rider courses. 800-833-3995 or 800-446-9227.

Running/WalkingDCRRC BELLE HAVEN 25KSaturday at 9 at Belle Haven Park, Alexandria. 703-241-0395. FutureMCRRC GREENWAY MARATHONMarch 3 at 9 on Greenway Trail. 301-353-0200.

MCRRC BURNING TREE 5KMarch 11 at 8:30 in Bethesda. 301-353-0200.

DCRRC BURKE LAKE 12KMarch 11 at 10 at Burke Lake Park. 703-241-0395.

MCCRC PIECE OF CAKE 10KMarch 17 at 9 at Seneca Creek State Park, Gaithersburg. 301-353-0200.

DCRRC FORT HUNT 10KMarch 18 at 8:30 at Fort Hunt Park. 703-241-0395.

DCRRC TIDAL BASIN 3KMarch 21 at noon at Tidal Basin in Washington. 703-241-0395.

DCRRC RUN VS. ROW 10KMarch 31 at 8 in Alexandria. 703-241-0395.

SkiingClubsBLACK SKI INC. 301-231-3900. CAPITAL GOLDEN SKIERSFor ages 50 and older. 703-256-0728.

FAGOWEES INTERNATIONAL 301-441-8585.

FREDERICKSBURG SKI CLUB 540-899-3688.

NASA/GODDARD SKI CLUB301-286-9140.

PENTAGON SKI CLUB 301-924-5173.

POTOMAC APPALACHIANTRAIL CLUBCross-country touring. 703-715-8534.

SKI CLUB OF WASHINGTON 703-532-7776.

SNOW SEARCHERS 202-404-8376.

SoftballNORTHERN VIRGINIA SENIOR SOFTBALLneeds men 50+ and women 40+ for Tuesday and Thursday morning play. 703-913-0028 or 703-524-5576.

SpeedskatingNATIONAL CAPITAL CLUB meets at the Gardens Ice House, Laurel. 301-445-3508. SILVER BLADES CLUB meets at Northwest Rink, Baltimore. 410-823-5923.

Table Tennis MARYLAND TABLE TENNIS Center has daily play in Gaithersburg. 301-519-8580.

NORTHERN VIRGINIA TABLETennis Club plays in Arlington. 703-442-9633.

Etc.VENTURE EXERCISE for blind and disabled

athletes, Saturdays at D.C. YMCA. 301-248-2681.

WASHINGTON WOMEN OUTDOORS offers cycling, hiking, rock climbing, canoeing and kayaking trips and instruction. 301-864-3070.