Anacostia River boat tours Naturalists lead environmental and historical tours on a 40-seat pontoon boat. Passengers 16 and younger must be accompanied by an adult. Last tours of the season Thursday-Sunday. Bladensburg Waterfront Park, 4601 Annapolis Rd., Bladensburg. 301-779-0371. www.pgparks.com. Free, reservations required.
Greenbelt Arts Festival As part of a week-long celebration of art in schools, students from Prince George’s County elementary, middle and high schools will put on musical and creative art performances. A visual art show will be on display in the lobby. Thursday-Friday 7-8 p.m. Eleanor Roosevelt High School Auditorium, 7601 Hanover Pkwy, Greenbelt. 301-513-5400. www1.pgcps.org/eleanorroosevelt. Free.
Sunset Yoga on the Piers An hour-long yoga practice gets going on the water with guest instructors from Sun & Moon Yoga Studio and live musical accompaniment. Series ends Thursday. National Harbor, 150 National Plaza, National Harbor. 877-628-5427. www.nationalharbor.com. Free.
“Presto” The Society of Estonian Magicians partners with the Embassy of France to present an interactive, musical magic show. Part of the Kid’s Euro Festival. 10:30 a.m. and 1 p.m. Harmony Hall Regional Center, John Addison Concert Hall, 10701 Livingston Rd., Fort Washington. 301-203-6070. www.kidseurofestival.org. Free, registration required.
Suburban Maryland Fall Home Show The event will feature hundreds of home improvement and landscaping exhibits, expert advice, product demonstrations and more. Friday 11 a.m.-8 p.m., Saturday 10 a.m.-8 p.m., Sunday 10 a.m.-6 p.m. Show Place Arena, 14900 Pennsylvania Ave., Upper Marlboro. 301-952-7900. www.acshomeshow.com. Free.
Doomsday Asylum Take a 20-minute walk through this haunted house adventure featuring more than 30 live actors with props and special effects. Parents cautioned: may be inappropriate for children younger than 13. 6:30-11 p.m. Fridays and Saturdays in October, as well as Oct. 29, 30 and 31. Bowie Baysox Stadium, Flagship Building Room 119, 4101 NE Crain Hwy., Bowie. 301-464-4865. www.baysox.com. $17 at door, $15 in advance.
Ghosts of Sotterley Travel back in time to the year 1918 in this outdoor walking tour that explores the earthly (and unearthly) inhabitants of the historic plantation. 7 p.m., tours run every 10 minutes. Fridays and Saturdays through Oct. 27. Historic Sotterley Plantation, 44300 Sotterley Lane, Hollywood. 301-373-2280. www.sotterley.org. $15, reservations required.
Twilight Tales on the Farm Come face to face with ghosts from Maryland’s past in this lantern-led ghoulish adventure through the “haunted” farmhouse, fields, historic tobacco barn and the “Tavern of Lost Souls.” Recommended for age 18 and older. Friday-Saturday at 7-9 p.m. National Colonial Farm, 3400 Bryan Point Rd., Accokeek. 301-283-2113. www.accokeek.org. $10, members $7. Reservations required.
Lee Travers, Kent Ashcraft and Jack Bannister The rock guitar duo performs with Jack Bannister. 7:30 p.m. Westlawn Inn, 9200 Chesapeake Ave., North Beach. 410-257-0001. www.westlawninn.com. Free, reservations recommended.
“Hellspawn II: Black Aggie Speaks” Active Cultures Theatre performs a trilogy of ghost tales inspired by the urban legend of Black Aggie. Sponsored by the Riverdale Park Arts Council. 8 and 10 p.m. Friday, Saturday and Nov. 2-3; 8 p.m. and midnight Oct. 31; 4 p.m. Sunday and Nov. 4. Riverdale Town Center, 4650 Queensbury Rd., Riverdale. 301-526-9921. www.activecultures.org/current_productions. $15, midnight show $20.
Gridloc Band The soul band performs a variety of music. Must be 21 or older. 8 p.m.-midnight Miss Motley’s Cafe, 9501 Crain Hwy., Bel Alton. 301-392-9794. www.belaltonalumnicdc.org. $10.
Kayleigh Porter ceramic sculpture The artist’s newest exhibit features ceramic sculptures that reflect organic shapes and the human body. Exhibit closes Oct. 27. Montpelier Arts Center, 9652 Muirkirk Rd., Laurel. 301-377-7800. arts.pgparks.com. Free.
College Park Day The third annual festival features food vendors including fan favorite Curbside Cupcakes, martial-arts demonstrations, live music, dance troupes and more. 11 a.m.-3 p.m. College Park Community Center, 5051 Pierce Ave., College Park. 301-441-2647. collegeparkday.org. Free.
Halloween in the Garden Annmarie Garden hosts a night of trick-or-treating for families. Wear a costume and explore the gardens to discover booths where local businesses hand out treats for the kids. Face-painting and other activities are also slated for this daytime event. 11 a.m.-4 p.m. Annmarie Garden, 13480 Dowell Rd., Solomons. 410-326-4640. www.annmariegarden.org. $1.
Bluegrass for Hospice Brother-and-sister duo the Roys of Nashville will headline this event, which supports the Hospice House of St. Mary’s. Other performers include fiddler Michael Cleveland and Flamekeeper and other local bluegrass bands. The outdoor event will also feature food, raffles, door prizes and a silent auction. Noon. Flat Iron Farm, 45840 Highway to Heaven Lane, Great Mills. 301-737-3004. www.bluegrassforhospice.com. $25.
Waldorf Fallfest A family-friendly event featuring live music, local farmers, artists and crafters. Kids are invited to come in costume and trick-or-treat on the trail and enjoy the “fun zone,” with inflatables, rides and face-painting. Finish the day off with a fireworks show. 1:30-6:30 p.m. Regency Furniture Stadium, 11765 St. Linus Dr., Waldorf. 301-645-0601. www.charlescountymd.gov. Free. Fun zone wristbands $5.
“FilAmplified” The University of Maryland’s Filipino Cultural Association hosts this talent showcase featuring performances by students and special guests. The event will be held in collaboration with the Asian American Student Union’s FUEL the Pride conference. Proceeds will benefit the Philippine Red Cross’s disaster relief efforts. 6 p.m. Hoff Theater, Campus and Union drives, College Park. 301-314-8499. www.fcaatumd.com/FilAmplified. $20, VIP $25.
Grave Matters Masquerade Ball This sophisticated slant on Halloween features hors d’oeuvres, cash bar, guided tours and live music from the Gretchen Richie Jazz Cabaret. Those who come dressed in costume will receive a free drink. 6:30-9:30 p.m. Historic St. Mary’s City, 18751 Hogaboom Lane, St. Mary’s City. 240-895-4990. www.stmaryscity.org. $40, couples $75. Reservations required.
The Great Jack o’ Lantern Campfire Dozens of illuminated jack-o’-lanterns will be on display on the museum grounds. Families are invited to roast marshmallows, drink cider and listen to haunted tales by a campfire, or participate in a hunt for prizes. 7 p.m. Rain date: Sunday at 6 p.m. Darnall’s Chance House Museum, 14800 Gov. Oden Bowie Dr., Upper Marlboro. 301-952-8010. www.pgparks.com. $3, cash only.
The Glo Run Strobe lights, black lights and a DJ. Sound like a party? Well, sort of. The glow-in-the-dark 5K party run/walk event will feature stimulating lights and activities to help runners to the finish line. Proceeds will benefit Back on My Feet, a Philadelphia-based nonprofit group that supports the homeless. Registration begins at 5:30, run starts at 7 p.m. National Harbor, 150 National Plaza, National Harbor. 877-628-5427. 877-628-5427. www.theglorun.com. $37 on or before Thursday, $49 after.
Thrill the World 2012 Joe’s Movement Emporium joins the global dance event honoring the genius of Michael Jackson’s “Thriller.” 7 p.m. Joe’s Movement Emporium, 3309 Bunker Hill Rd., Mount Rainier. 301-699-1819. www.joesmovement.org. Free.
“Tri-Artist Invitational” Three artists display their varied art styles. Kathy Daywalt presents linocut art, Charles Hughes shows his paintings and Allen Price showcases his photography. Closes Sunday. Mattawoman Creek Art Center, Smallwood State Park, Route 224, Marbury. 301-743-5159. www.mattawomanart.org. Free, donations welcome.
Big Band Pre-Halloween Scream Performances by the University of Maryland Jazz Ensemble, Jazz Lab Band and University Jazz Band. 7:30 p.m. Clarice Smith Performing Arts Center, Dekelboum Concert Hall, University of Maryland, Route 193 and Stadium Drive, College Park. 301-405-2787. www.claricesmithcenter.umd.edu. Free.
“Glitz: Art That Sparkles” An exhibit featuring works that shine, sparkle, twinkle, shimmer, flicker, flash and glitter. Exhibit runs through Jan. 13. Annmarie Garden, 13480 Dowell Rd., Solomons. 410-326-4640. www.annmariegarden.org. $3, seniors and ages 5-11 $2; age 4 and younger free.
“Bearden at Bowie” An art exhibition of limited-edition prints and other works by the celebrated artist Romare Bearden. Exhibit closes Oct. 31. Bowie State University, Fine and Performing Arts Center, Recital Hall, 14000 Jericho Park Rd., Bowie. 301-860-3750. 301-860-4000. www.bowiestate.edu. Free.
“Not So Spooky Hallow Fest” An evening of trick-or-treating, games, arts and crafts, live performances, DJ music and more. 6-9 p.m. Prince George’s Sports and Learning Complex, 8001 Sheriff Rd., Landover. 301-583-2400. www.pgsportsandlearn.com. $5, age 2 and younger free.
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3Brother-and-sister duo the Roys of Nashville will headline this Saturday event, which supports the Hospice House of St. Mary’s. Other performers include fiddler Michael Cleveland and Flamekeeper, and other local bluegrass bands. The outdoor event will also feature food, raffles, door prizes and a silent auction. Noon. Flat Iron Farm, 45840 Highway to Heaven Lane, Great Mills. 301-737-3004. www.bluegrassforhospice.com. $25.