HALLOWEEN NATURE PROGRAM, for ages 6-10, learn about bats, spiders and owls, and make a trick-or-treat bag, 4-5 p.m., Gulf Branch Nature Center, 3608 N. Military Rd., Arlington. $3; preregistration required. 703-228-3403.
ALEXANDRIA "SECOND THURSDAY," live music and other entertainment starts at 6 p.m.; shops and galleries open until 9 p.m., streets near Market Square and the waterfront. Free admission. 703-838-4546, Ext. 6.
VIRGINIA CANDIDATES FORUM, candidates running for governor, lieutenant governor and attorney general discuss "Accepting Accountability," light refreshments, sponsored by Young Professionals Network of the Northern Virginia Urban League, 6:30-9 p.m., Lyceum, 201 S. Washington St., Alexandria. Free. 703-914-2012.
FORT MYER CONCERT, "Octuba-Fest," 7:30 p.m., Brucker Hall, Washington Boulevard and South Second Street, Arlington. 703-696-3399 or www.usarmyband.com.
METROSTAGE DRAMA, "For the Pleasure of Seeing Her Again," by Michel Tremblay, about a son's homage to his mother, 8 p.m. Wednesdays-Saturdays, 2 and 7 p.m. Sundays, through Nov. 27, MetroStage, 1201 N. Royal St., Alexandria. $32-$38. 800-494-8497 or www.boxofficetickets.com.
"DRACULA," performed by Synetic Theater, 8 p.m. Thursdays-Saturdays, 3 p.m. Sundays, through Oct. 29, Rosslyn Spectrum, 1611 N. Kent St., Arlington. $15-$30. 703-824-0660 or www.synetictheater.org.
BALLSTON FARMERS MARKET, vegetables, fruit, cheese, herbs, French bread, pastries, syrup, flowers and eggs, with live music, 11 a.m.-3 p.m., final market of the season,Welburn Square, North Ninth and North Stuart streets, near Ballston Common Mall, Arlington. 703-528-3527.
"A TASTE FOR ART," works by Torpedo Factory artists and food from Alexandria restaurants, sponsored by Friends of the Torpedo Factory, 7:30-10:30 p.m., Torpedo Factory Art Center, 105 N. Union St., Alexandria. Couples, $75; in advance, $65. 703-683-0693.
"ONCE UPON A MATTRESS," performed by the Arlington Players, 8 p.m. Friday and Saturday, Thomas Jefferson Community Theatre, 125 S. Old Glebe Rd., Arlington. $18; seniors and 17 and younger, $15. 703-549-1063.
"HAUPTMANN," a play about Bruno Richard Hauptmann, who was convicted of kidnapping the infant son of Charles and Anne Morrow Lindbergh, performed by Port City Playhouse, 8 p.m. Friday and Saturday, Lee Center of the Performing Arts, 1108 Jefferson St., Alexandria. $14; seniors and students, $12. 703-838-2880 or www.portcityplayhouse.com.
ALEXANDRIA FARMERS MARKET, meat, dairy products, fish, fruit and vegetables, sponsored by the City of Alexandria, 5-10 a.m., Market Square, 301 King St. Free admission. 703-838-5006.
FALL FOLIAGE HIKE, travel by van to Shenandoah National Park; participants should bring lunch, water bottles, sunscreen and bug spray and wear comfortable shoes, 9 a.m.-5 p.m., meet at Lubber Run Community Center parking lot, 300 N. Park Dr., Arlington. $20; preregistration required. 703-228-4747 or 703-228-6535.
NORTH RIDGE FALL FESTIVAL, jazz music by Dave Cosby, arts and crafts, moon bounce, flea market, food and more, sponsored by North Ridge Citizens Association, 9 a.m-2 p.m., Charles Barrett Recreation Center, 1115 Martha Custis Dr., Alexandria. Free admission. 703-548-9485.
ALEXANDRIA BUDGET HEARING, the City Council discusses Alexandria's 2007 operating budget and capital improvement program, 9:30 a.m., City Hall, second floor, Council Chamber, 301 King St. Free. 703-838-4500.
PRESCHOOLERS FALL FESTIVAL, games, crafts, children's activities, a puppet show, silent auction and food, sponsored by Potomac Crescent Waldorf School, 10 a.m.-2 p.m., the school, 923 S. 23rd St., Arlington. $5 per child. 703-624-1309.
20-MILE BIKE TOUR, along Heritage Trail on streets and hills, helmets required, sponsored by Alexandria Archaeology Museum, 10 a.m. -- noon, meet at George Washington Masonic National Memorial's parking lot, 101 Callahan Dr., Alexandria. Free; preregistration required. 703-838-4399.
BOOTHE PARK FALL FESTIVAL, live entertainment, children's activities, exhibits, food and more, 10 a.m.-2 p.m., Armistead L. Boothe Park, 520 Cameron Station Blvd., Alexandria. Free. 703-883-4686 or 703-838-4844.
SENIORS SHENANDOAH VALLEY TRIP, travel by bus to the Hot Air Balloon and Wine Festival; bus departs from three Arlington locations: 10:25 a.m., Carver Senior Center, 1415 S. Queen St.; 10:40 a.m., Lubber Run Community Center, 300 N. Park Dr.; 11 a.m., Madison Senior Center, 3829 N. Stafford St. Bus returns at 7:30 p.m. $31; preregistration required. 703-228-4749.
KIDS EARTH SCIENCE PROGRAM, for ages 6-17, discussed by members of Northern Virginia Mineral Club, with light refreshments and door prizes, 10:30 a.m.-noon, Long Branch Nature Center, 625 S. Carlin Springs Rd., Arlington. Free; preregistration required. 703-228-4747.
"THE MUSIC BOX," for ages 4 and older, performed by Classika Theatre, noon Saturdays and Sundays, through Oct. 30, at the theater, 4041 S. 28th St., Arlington. $15. 703-824-0660 or www.synetictheater.org.
OWL PROGRAM, for ages 8 and older, a visit with a live owl and a nature walk, 7 p.m., Potomac Overlook Regional Park, nature center, 2845 N. Marcey Rd., Arlington. Free; preregistration required. 703-528-5406 or www.potomacoverlook.org.
ALEXANDRIA CANDIDATES FORUM, with candidates running for sheriff and 45th and 46th District legislative offices; question-and-answer session; and brunch, 10 a.m.-noon, Agudas Achim Congregation, 2908 Valley Dr., Alexandria. $5. 703-998-6460.
TAVERN HISTORY PROGRAM, for ages 5 and older, costumed guides lead participants on a one-hour tour and hands-on activities about 18th-century communication, 1-4:30 p.m., Gadsby's Tavern Museum, 134 N. Royal St., Alexandria. $5; preregistration required. 703-838-4242 or www.gadsbystavern.org.
NATURE WALK, for ages 10 and older, guided hike and hands-on activities, 2 p.m., Potomac Overlook Regional Park, Nature Center, 2845 N. Marcey Rd., Arlington. Free; preregistration required. 703-528-5406.
COLUMBIA PIKE LIBRARY CELEBRATION, for the library's 75th anniversary, cake and stories by storyteller Elizabeth McWilliams, 2-4 p.m., 816 S. Walter Reed Dr., Arlington. Free. 703-228-5710.
MARYLAND BIRDING TRIP, a van trip to Blackwater National Wildlife Refuge, participants should bring binoculars, a bag lunch and snacks, and dress for the weather, 8 a.m.-5 p.m., meet at Lubber Run Community Center, 300 N. Park Dr., Arlington. $20; preregistration required. 703-228-4747.
POLYMER SCULPTURE EXHIBIT, works by Fran Abrams, 10 a.m.-4 p.m. weekdays, through Oct. 28, Northern Virginia Community College, Margaret W. and Joseph L. Fisher Art Gallery, 3001 N. Beauregard St., Alexandria. Free. 703-845-6156 or www.schlesingercenter.com.
"WEAVE A LITTLE WEB FOR ME," exhibit by Potomac Craftsmen Fiber Gallery artists, opens 10 a.m.-4 p.m. Tuesday; continues 10 a.m.-4 p.m. weekdays, 11 a.m.-5 p.m. weekends, through Nov. 13, Torpedo Factory Art Center, Studio 18, 105 N. Union St., Alexandria. Free. 703-548-0935 or www.potomaccraftsmenfibergallery.com.
CARLYLE HOUSE EXHIBIT, "Death Comes to Carlyle House: An 18th-Century Virginia Home in Mourning," in honor of the 225th anniversary of the death of John Carlyle, a tour and display of mourning jewelry, a reproduction coffin and black crepe, 10 a.m.-4:30 p.m. Tuesdays through Saturdays, noon-4:30 p.m. Sundays, through Oct. 30, Carlyle House Historic Park, 121 N. Fairfax St., Alexandria. $4; ages 11-17, $2; 10 and younger, free. 703-549-2997.
ART EXHIBITS, photography, wood and metal sculpture, mixed media, fabric sculpture, glass art and prints by regional artists, 11 a.m.-5 p.m. Tuesdays through Saturdays, through Nov. 5, Arlington Arts Center, 3550 Wilson Blvd., Arlington. Free. 703-248-6800.
CHILDREN'S CIVIL WAR PROGRAM, for ages 7-11, participants can learn about what soldiers carried in their haversacks, 3:30-4:30 p.m., Fort C.F. Smith Park and Historic Site, 2411 N. 24th St., Arlington. $2; preregistration required. 703-243-7329 or 703-228-4747.
"FOUNDING MOTHERS," discussion of Cokie Roberts's book "Founding Mothers: The Women Who Raised Our Nation," 7 p.m., Columbia Pike Library, 816 S. Walter Reed Dr., Arlington. Free. 703-228-5710.
CEMETERY DESIGN TALK, Dwight Young of the National Trust discusses "Cemetery Design and Art in America," 7:30 p.m.; refreshments, 7 p.m., Gadsby's Tavern Museum, 134 N. Royal St., Alexandria. $12; reservations recommended. 703-838-4242 or www.gadsbystavern.org.
ENVIRONMENTAL PROTECTION TALK, Elenor Hodges of Arlingtonians for a Clean Environment discusses ways to protect Arlington streams and the Chesapeake Bay, 11:15 a.m., Lee Senior Center, 5722 Lee Hwy., Arlington. Free; preregistration required. 703-228-0555.
-- Compiled by RIA MANGLAPUS
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