CATHOLIC U. BOYS AND GIRLS camps start July 12 for ages 8 to 18. 301-622-5058.
FABB SPORTS registering teams and players for summer league. 301-630-9300.
BUMP 'N' RUN MEN'S and women's leagues needs teams. 202-409-8764.
CATHOLIC U. BOYS AND GIRLS camps start July 5 for ages 8 to 16. $170. 202-319-6046.
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.
CANOE CRUISERS has one-hour beginner classes through August at Fletcher's Boathouse and at Swain's Lock. 301-434-4007.
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.
BEGINNERS SCUBA class starts Thursday at Alexandria YMCA. 703-619-1500.
FABB SPORTS registering teams and players for coed summer flag league. 301-630-9300.
NON-CONTACT CAMP for boys ages 8 to 15 starts July 19 at Holy Cross High School and July 26 at William Wirt Middle School. 301-864-2755.
APPALACHIAN MOUNTAIN CLUB -- Tape: 202-298-1488.
CAPITAL CLUB -- Saturday, to Conestoga Trail ($18); 703-401-2719 or 301-493-5353. Bus for most trips leaves 16th and I NW at 8 a.m. with suburban stops.
CENTER CLUB -- Saturday, to Doyles River; 703-517-3490. Sunday, to Blockhouse Point Park; 703-527-2349. Tuesday, in Old Town Alexandria; 202-419-3420.
MOUNTAIN CLUB OF MARYLAND -- Saturday, to Jeremy's Run/Neighbor Mountain; 410-285-0363.
NORTHERN VIRGINIA CLUB -- Saturday, a "hound hike" at Wakefield Park. Saturday, to Duncan Knob. Sunday, to Lake Accotink. Activities tape: 703-440-1805.
POTOMAC APPALACHIAN TRAIL CLUB -- Tape: 703-242-0965.
SIERRA CLUB -- Saturday, to Austin Mountain. Activities tape: 202-547-2326.
WANDERBIRDS -- Sunday, to Caledonia State Park ($15); 301-251-0899. 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, lessons 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.
FOUR SEASONS 5K IN MEMORY of Terry Fox, Saturday at 8 in Georgetown to benefit Washington Cancer Institute. 202-944-9163.
MARC TRAIN 5-MILE -- Saturday at 8 in Odenton. 410-551-4301 or 410-647-6000.
WOMEN'S DISTANCE 5K -- Saturday at 8 at South Lakes High, Reston. 703-787-9023.
TIM HARMON 5K -- Saturday at 8:30 at Fairfax Government Center. 703-934-8756.
CAROL HOUSAMAN RACE For the Ride -- Saturday at 9 at Prince William County Stadium Complex.
DCRRC LANGLEY 8K -- Tuesday at 7 at Langley High School, McLean. 703-241-0395.
PVTC GO-FOURTH 8K -- July 4 at 7:30 at Belle Haven Park, Alexandria. 703-481-3530.
CURE AUTISM 5K -- July 4 at 8 at Potomac Village Library. 301-419-8198.
LIFE 5K RUN/WALK -- July 11 at 8 in Rock Creek Park. A benefit for cancer research foundations. 202-726-7819.
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.
MONTGOMERY MEN'S 55+ league needs players. 301-438-8682.
WOMEN'S MASTERS team in Montgomery County needs players. 301-434-4993 or 301-792-0888.
MONTGOMERY COUNTY COED team needs female players. 301-990-4929.
COLONIAL BEACH TRIATHLON -- July 11 in Colonial Beach; 1K swim, 40K bike, 10K run. 540-371-9622.
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.