ANNAPOLIS SAILING SCHOOL and Powerboat School offers beginning and advanced courses, and Kidship sailing courses for ages 5 to 15. 800-638-9192.
CHESAPEAKE SAILING SCHOOL has courses in Annapolis. 800-966-0032.
J WORLD has courses in Annapolis. 800-966-2038 or 410-280-2040.
MARINER SAILING SCHOOL offers courses in Alexandria. 703-768-0018.
WOMANSHIP offers courses in Annapolis. 800-342-9295
U.S. COAST GUARD AUXILIARIES and U.S. Power Squadrons offer power and sail courses. 800-336-2628; in Virginia, 800-245-2628.
ALL AMERICAN CLUB -- Damascus. 301-253-5800.
ATLANTIC CYCLING -- 301-610-0526.
BIKE & BRUNCH -- 301-881-2453.
BIKE THE SITES -- 202-842-2453.
FREDERICKSBURG CYCLISTS -- 540-373-1451.
MID-ATLANTIC OFF-ROAD Enthusiasts -- 703-502-0359.
NATIONAL CAPITOL VELO CLUB -- 301-562-0419.
OXON HILL CLUB -- 301-567-6760.
POTOMAC PEDALERS -- 202-363-8687.
RESTON CLUB -- 703-904-0900.
SENIOR CYCLING -- 540-668-6307.
TEAM DC -- 202-882-1337.
WASHINGTON AREA BICYCLIST Association -- 202-628-2500.
WASHINGTON WOMEN OUTDOORS -- 301-864-3070.
WHOLE WHEEL VELO CLUB -- 703-426-5255.
APPALACHIAN MOUNTAIN CLUB -- Tape: 202-298-1488.
CAPITAL CLUB -- Friday, on the C&O Canal by moonlight; meet at 8:30 parking lot across from Old Angler's Inn; 703-451-9223 or 301-320-9542. Saturday, to Harpers Ferry ($18); 301-843-5660. Bus for most trips leaves 16th and I NW at 8 a.m. with suburban stops.
CENTER CLUB -- Saturday, to Kings Gap State Park; 703-527-2349. Sunday, to Patterson Ridge; 703-451-1341. Aug. 3, in Arlington and Falls Church 202-419-3420.
MOUNTAIN CLUB OF MARYLAND -- Wednesday, to Big Gunpowder Falls; 410-663-9797.
NORTHERN VIRGINIA CLUB -- Saturday, to Twin Branches, with dogs. Sunday, to Big Devils Stairs. Activities tape: 703-440-1805.
POTOMAC APPALACHIAN TRAIL CLUB -- Tape: 703-242-0965.
SIERRA CLUB -- Saturday, to Prince William Forest Park. Sunday, to Baltimore and Annapolis Trail. Tuesday, to Tuscarora Trail. Activities tape: 202-547-2326.
WANDERBIRDS -- Sunday, to Jenkins Gap ($18); 202-462-7049 or 301-656-9169. Bus for most trips leaves 17th and K at 8 a.m. with suburban stops.
ARROWHEAD EQUESTRIAN Center has lessons for children and adults near Manassas. 703- 594-3512.
BROAD RUN RIDING SCHOOL in Midland has lessons for children and adults. 540-439-9586.
BUCK VALLEY RANCH -- Trail rides near Cumberland. 717-294-3759.
CLAY HILL STABLES has classes in Landover. 301-773-0444.
ELK MOUNTAIN TRAILS has guided rides near Harpers Ferry. 301-986-8483 or 301-834-8882.
EQUILIBRIUM HORSE CENTER has instruction in Gambrills, Md. 410-721-0885.
EQUESTRIAN ENTERPRISES has weekday trail rides and Saturday instruction in Great Falls, Va. 703-759-2474.
FORT VALLEY STABLES has trail rides in Massanutten Mountains. 888-754-5771 or 540-933-6633.
FOXCHASE FARM has riding lessons and introduction to fox hunting in Middleburg. 540-687-5255.
GREENWAY STABLES offers unguided trail rides near Dulles Airport. 703-327-6117.
HARMON'S HAYRIDES -- Horse-drawn wagon rides near Brandy Station. 540-825-6707.
HIGHLANDER HORSES has trail rides in Shenandoah Valley. 540-636-4523.
HUNTER EQUESTRIAN CENTER offers riding lessons in Clinton. 301-292-9006.
LOFTMAR STABLES has hunter seat lessons in Bowie. 301-249-7893.
MARRIOTT RANCH -- Trail rides in the Blue Ridge Mountains. 540-364-2627.
MEADOWBROOK STABLES has lessons for children and adults in Chevy Chase. 301-589-9026.
MERRYMOUNT EQUESTRIAN CENTER -- Classes for children and adults in Upper Marlboro. 301-868-2109.
MOUNTAIN SPRING STABLE has trail rides in Blue Ridge Mountains. 703-987-9545.
MOUNTAINTOP RANCH has trail rides in the Shenandoah Valley and Blue Ridge Mountains. 540-298-9542.
PISCATAWAY STABLE has trail rides and hay rides in Clinton. 301-297-9808.
POTOMAC GLEN RIDING School has lessons for children and adults near Germantown. 301-601-0622.
POTOMAC HORSE CENTER offers lessons in Gaithersburg. 301-208-0200.
RIVER BOTTOM TRAIL RIDERS has trail rides in Patuxent River State Forest. 301-253-0999.
ROCK CREEK PARK HORSE CENTER has classes and rides in Northwest Washington. 202-362-0117.
RODES FARM has trail rides, lesson and pony rides in Blue Ridge Mountains. 804-325-8260.
TAMARACK STABLES has lessons and trail rides in Goldvein, Va. 703-752-7367.
TARTAN FARMS has lessons in Poolesville. 301-972-8567.
WATER'S GIFT EQUESTRIAN Center has English riding lessons in Burtonsville. 301-421-0380.
WHEATON PARK STABLES offers classes for children and adults, and Sunday trail rides. 301-622-2424.
WOODLAWN STABLES has lessons in Alexandria. 703-780-4344.
ALEXANDRIA CLUB needs college-level players for fall. 703-535-6776.
MCRRC TAKE BACK THE NIGHT 5K -- Tuesday at 7 p.m. in Olney. 301-353-0200.
DCRRC BON AIR PARK 5K -- Thursday at 7 in Arlington. 703-241-0395.
MCRRC TRACK MEET -- Aug. 6 at 7:30 p.m. in Bethesda. 301-353-0200.
LEESBURG 20K/10K -- Aug. 8 at 8:15 in Leesburg. 301-871-0400.
LOCUST SHADE PARK 5K -- Aug. 14 at 7:30 in Triangle. 703-221-8579.
MCRRC COMUS CROSS COUNTRY 5K -- Aug. 15 at 5 p.m. in Comus. 301-353-0200.
DCRRC BETHESDA 5K -- Aug. 15 at 6 p.m. at Lynnbrook Recreation Center, Bethesda. 703-241-0395.
DCRRC TIDAL BASIN 3K -- Aug. 18 at noon at Jefferson Memorial. 703-241-0395.
DCRRC PAUL THURSTON 4.5-MILE -- Aug. 19 at 6:45 p.m. at Burke Lake Park. 703-241-0395.
ARLINGTON COUNTY FAIR MILE -- Aug. 21 at 8:30 at Thomas Jefferson Community Center, Arlington. 703-241-0395.
WOMEN'S DISTANCE FESTIVAL 5K -- Aug. 28 at 8 in College Park; men's estimated time run at 8:45.
NVSL OVER-30 MEN'S team needs college-level players. 703-204-2475.
ARLINGTON WOMEN'S 30+ team needs players and goalkeeper. 703-893-6370.
ARLINGTON COED team needs female players for Saturday games. 703-499-3816.
NORTHERN VIRGINIA Senior Softball seeks men 50+ and women 40+ for Tuesday and Thursday morning leagues. 703-860-1876 or 703-524-5576.
MONTGOMERY COUNTY COED team needs female players. 301-990-4929.
ALEXANDRIA LEAGUE needs teams, players and referees. 703-490-4269.
ANNANDALE MASTERS CLUB practices at Wakefield Park Rec Center, Annandale. 703-354-4332.
BURKE MASTERS has coached workouts in Burke. 703-582-0429.
FAIRFAX COUNTY Masters has coached workouts in Annandale, Falls Church and Oakton. 703-204-9512.
GERMANTOWN MASTERS swimming has coached workouts for adults in Gaithersburg and Germantown. 301-540-1591.
MARYMOUNT MASTERS swim team practices in Arlington. 703-284-3832.
TERRAPIN MASTERS CLUB practices at U. of Maryland. 202-387-2361.
U. OF MARYLAND camps starts Monday, day sessions for boys, evenings for girls, at Reckord Armory. 301-270-0710.
DC VOLLEYBALL has adult leagues. 202-857-0700.
FAIRFAX JUNIORS has youth clinics in Fairfax County. 703-476-1017.
MID-ATLANTIC Volleyball has clinics and tournaments. 301-972-3611.
USA VOLLEYBALL Chesapeake Region has information about leagues, clinics, camps and tournaments. 301-270-0710.
VOLLEYBALL HOUSE in Elkridge has leagues and clinics. 410-579-1007.