The D.C. Department of Recreation is celebrating Halloween in a big way Friday with dances, costume parties, movies and other activities for people of all ages at almost every recreation center in town.

The following events, all free of charge, have been scheduled. For more information on events at specific centers, call the center or 673-7660.

Ward 1 -- Haunted house and treats for ages, 6 to 10 p.m., Banneker Recreation Center, Ninth and Euclid streets NW; Parade, costumes, musical chairs, pinata and treats for children 11 and younger, 4 p.m., Bruce-Monroe Recreation Center, Columbia Road and Sherman Avenue NW. b

Ward 2 -- Carnival for children 12 and younger, 6 p.m., and dance for those 13 to 18 years old, 6:30 to 9 p.m., J.O. Wilson Recreation Center, Seventh and K streets NE; Haunted boat visit for children 12 and younger, 4 to 9 p.m., Kennedy Recreation Center, Seventh and P streets NW.

Ward 3 -- Family singing, costumes and games, 7:30 to 10 p.m., Chevy Chase Community Center, 5601 Connecticut Ave. NW; Community party, 3:30 to 6 p.m., and potluck dinner, 6 p.m., Hardy Recreation Center, 45th and O streets NW.

Ward 4 -- Movies, costume parties and games for residents 12 and younger, 4 to 6 p.m., and parties for residents 13 and older, 7 and 9 p.m., at 13 recreation centers. Call 576-6878 for locations and more information.

Ward 5 -- Party for residents 2 and younger, 6:30 p.m., and party for those 13 and older, 8:30 to 11 p.m., Arboretum Recreation Center, 24th Street and Rand Place NE; Games and contests for residents. 12 and younger, 6:30 p.m., Montana Recreation Center, 1625 Montana Ave. NE.

Ward 6 -- Programs for all ages, 4 to 11 p.m., at 14 recreation centers. Call 767-8086 for information on events and locations.

Ward 7 -- Carnivals, games and prizes for youths 13 and younger, 3:30 to 6:30 p.m., and dances, costume parties and other activities from 7 to 10 p.m. or 7 p.m. to midnight for youths 14 and older at 17 recreation centers. Call 767-7470 for locations and more information on specific events. c

Ward 8 -- Carnival and dance for all ages, 5 p.m. to midnight, Washington-Highland Recreation Center, Eighth and Yuma streets SE; Pre-teen party, 4 to 6 p.m., Friendship Community Center, 4600 Livington Rd. SE.

Youths 13 and younger must be accompanied by an adult at events held after 8 p.m.