BELTSVILLE CLUB plays Sundays. 301-937-6613.
D.C. CLUB plays Thursdays at St. Alban's School, Washington. 202-776-7707.
CATHOLIC U. BOYS AND GIRLS camps start June 21 and July 5 for ages 8 to 16. $170. 202-319-6046.
POWER BOAT SAFETY COURSE with Coast Guard Auxiliary 14-6 starts June 1 at Carl Sandburg Middle School, Alexandria. 703-780-8914.
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.
BENEFIT TOURNAMENT, Friday at Worthington Manor Golf Club, Urbana, for Evergreen School. 301-942-5979.
APPALACHIAN MOUNTAIN CLUB -- Tape: 202-298-1488.
CAPITAL CLUB -- Saturday, to Panorama ($18); 301-587-0394 or 301-984-3216. Bus for most trips leaves 16th and I NW at 8 a.m. with suburban stops.
CENTER CLUB -- Friday, to Huntley Meadows; 703-451-1341. Saturday, to Paw Paw Tunnel; 703-527-2349. Saturday, Alexandria to Mount Vernon; 202-408-0481. Saturday, in Arlington; 703-243-0179 or 703-525-3357. Sunday, to Potomac Heritage Trail; 301-773-7527.
MOUNTAIN CLUB OF MARYLAND -- Saturday, to Cedarville; 410-744-6057. May 26, to Pataspco State Park; 410-356-3833.
NORTHERN VIRGINIA CLUB -- Saturday, to Sams Ridge. Saturday, with dogs to Lake Fairfax. Sunday, to Burke Lake Park. Activities tape: 703-440-1805.
POTOMAC APPALACHIAN TRAIL CLUB -- Tape: 703-242-0965.
SIERRA CLUB -- Saturday, to Pohick and South Run Valley Stream parks. Saturday, to Jefferson County, W. Va. Sunday, Penmar to Wolfsville. Activities tape: 202-547-2326.
WANDERBIRDS -- Sunday, to Sunset Rocks ($15); 703-660-2342 or 202-338-5299. 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.
BLUE FOX FARM offers lessons in Chantilly. 703-690-7922.
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.
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.
MOTORCYCLE SAFETY FOUNDATION offers beginner and advanced rider courses. 800-833-3995 or 800-446-9227.
MCRRC KIDS ON THE RUN -- Saturday at 8 for ages 18 and under at Bohrer Park, Gaithersburg. 301-353-0200.
GERMANTOWN 5-MILE/2-MILE -- Saturday at 8:30 in Germantown. 301-871-0400.
CAPITOL HILL 10K -- Sunday at 8:30 at Stanton Park, Fifth and C NE. 301-871-0400.
MCRRC SUE WEN's 5K -- May 29 at 8 at Rock Creek Elementary School, Rockville. 301-353-0200.
CASCADES FIRECHASE 10K -- May 29 at 8 in Sterling. 301-871-0400.
MCRRC CAPITAL CRESCENT 5K -- June 6 at 7:45 at Capital Crescent Trail, Bethesda. 301-353-0200.
DCRRC WOMEN'S DISTANCE 5K -- June 6 at 8:30 at Bon Air Park, Arlington; Run After the Women 5K, 9:15. 703-241-0395.
KIWANIS 10K CHALLENGE -- June 12 at 8 in Crofton. SASE to 1710 Bloomsberry Ct., Crofton. 410-451-3998 or 410-721-1729.
DCRRC TIDAL BASIN 3K -- June 16 at noon at Jefferson Memorial. 703-241-0395.
HUGH JASCOURT 4-MILE -- June 21 at 7 in Washington. 703-241-0395.
TIM HARMON 5K -- June 26 at 8:30 at Fairfax Government Center. 703-934-8756.
WOMEN'S DISTANCE 5K -- June 26 at 8 at South Lakes High, Reston. 703-787-9023.
DCRRC LANGLEY 8K -- June 29 at 7 at Langley High School, McLean. 703-241-0395.
ACHILLES TRACK CLUB has program for physically challenged athletes at Gaithersburg High. 301-530-2889.
AMERICAN RUNNING AND Fitness Association -- 301-913-9517.
ANNAPOLIS STRIDERS -- SASE to Box 187, Annapolis, MD 21404. 410-268-1165.
CAPITOL HILL RUNNERS -- 301-283-0821.
CARROLL CREEK PACERS -- SASE to CCPRC, Frederick County YMCA, 1000 N. Market St., Frederick, MD 21701. 301-663-5131.
D.C. FRONT RUNNERS -- 202-628-3223.
D.C. ROAD RUNNERS CLUB -- SASE to DCRRC, P.O. Box 1352, Arlington, VA 22210. 703-241-0395.
EASTERN MARKET RUNNERS meets at Capitol East Natatorium. 202-543-9397.
FREDERICK STEEPLECHASERS -- SASE to P.O. Box 681, Frederick, MD 21705. 301-371-7675.
GNATS RUNNING CLUB -- SASE to 7507 Overlook Ct., Oxon Hill, MD 20745. 301-839-7957.
HOWARD COUNTY STRIDERS -- 410-964-1998.
MONTGOMERY COUNTY RRC -- P.O. Box 1703, Rockville, MD 20850. 301-353-0200.
NORTHERN VIRGINIA RUNNING Club -- SASE to 4001 N. Ninth St., Apt. 1901, Arlington, VA 22203.
POTOMAC VALLEY TRACK CLUB -- SASE to 3140-D West Springs Dr., Ellicott City, MD 21043-3261. 703-671-2520.
PRINCE GEORGE'S RC -- SASE to PGRC, P.O Box 877, Greenbelt, MD 20768. 301-927-1924 or 301-982-2457.
RESTON RUNNERS -- SASE to P.O. Box 2924, Reston, VA 22090. 703-437-3668.
RIDGE RUNNERS -- SASE to 12350 Oakwood Dr., Lake Ridge, VA 22192. 703-491-2154, Ext. 113.
SHENANDOAH VALLEY RUNNERS Club -- SASE to 1195 S. River Rd., Front Royal, VA 22630. 540-635-1773.
WASHINGTON RUNNING CLUB -- SASE to P.O. Box 545, McLean, VA 22101. 703-536-7764.
WASHINGTON RUNHERS -- SASE to P.O. Box 5622, Arlington, VA 22205.
D.C. STODDERT U9-U12 leagues holding tryouts Monday through Thursday. 202-338-9005.
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.
INNER QUEST offers frequent classes in kayaking, canoeing, rock climbing and caving. 703-478-1078.
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.