ATARI Computer Camps, 40. E. 34th Street, New York, N.Y. 10016. Toll-free: 800-847-4180. Ages 10-18, coed. Four locations: Stroudsburg, Pa., in the Poconos; Asheville, N.C., in the Smokey Mountains; Lakeland in Sheboygan, Wis.; and San Diego, Calif., 4 weeks, $1,590; additional weeks, $325; 8 weeks $2,790.

Boy Scouts of America Camps, 301-530-9360.

OPEN ONLY TO SCOUTS. Goshen (Va.) Scout Camp, $69-78 per week. Cub Scout Day Camps, 5 days, $25.

Culver Summer Schools (Aviation School), Culver, Ind. 46511. Ages 13-17, coed. Ground and flight training. A 17-year-old can earn a pilot's license after attending the six-week summer sessions for three years. Facilities at Culver Military and Culver Girls Academy. Six-week session beginning mid-June, $1,150. Students choose from 100 additional activities, such as athletics, aquatics, leadership development, drama, sailing, and academics.

Girl Scout Camps, Potomac Woods, 101 wooded acres near Leesburg, Va; May Flather, near Bridgewater, Va. OPEN TO NON-SCOUTS for $3 additional fee. Girls 6-17, one week, $100; 2 weeks, $175. Four-day mini-camp for 5- to 8-year-olds, $55. Prices include bus transportation from D.C. Traditional program: nature, swimming, canoeing, biking. Platform tents. Special units for older campers offering climbing, rappelling, back packing, caving, canoeing, sailing and diving. For brochure or information, call Linda Abbott, Camp Administrator, G.S. Council of the Nation's Capital, 337-4300.

Mobjack Sailing Camp, Chesapeake Bay-Tidewater, Va. area. Ages 10-16, coed. Campers learn marine weather, knots and line handling, chart reading, basic piloting, sails and rigging, boat handling and maintenance. Longer, overnight cruises for advanced campers. Housing in lodge or bunkhouse. Other activities: swimming, canoeing, rowing, fishing, volleyball, badminton, crabbing and water skiing at early sessions. One week, day sailing, $235; additional weeks, $210. One week cruising, $250; 2 weeks, $450. Contact Linda Grier at Camp Friendship, Palmyra, Va. or call 202-484-3995 (toll-free from D.C. area).

Traveling Tutors, Study trip to France for high school students (coed), led by Sue Gurland, in conjunction with the American Institute for Foreign Study (AIFS). No language requirement, classes at beginning, intermediate and advanced levels. July 3-30: 1 week Paris, 2 weeks on the Riviera, and 1 week traveling, including a Rhine River Cruise. Approximately $2,400, including air fare, room and board in French student dorms, supervision and classes. Call Sue Gurland, 301-585-0650.

YMCA Camp Letts, P.O. Box 208, Edgewater, Md. 21037. 301-261-4286. Ages 8-16, coed. Traditional program, 14 days, $349. Also available: trail camping, horse master, sea farer, ski masters (water skiing), $416-$586. Cabins and tents.