CREATURES OF THE NIGHT BAT PROGRAM: 6 p.m., Barataria Preserve of Jean Lafitte National Historical Park and Preserve, 6588 Barataria Blvd., Marrero. Get to know Barataria’s bats with Craig Hood, of Loyola University, including children’s bat craft available during talk, followed by bat-spotting with special bat detection equipment. Reservations required. (504) 689-3690, ext. 10. nps.gov/jela.
OWL PROWL: 6 p.m., Woodlands Trail, Woodlands Conservancy, 449 F. Edward Hebert Blvd., Belle Chasse. Halloween prowl to learn about nightlife, experience the forest after dark and find owls. $10 adults, $5 members, ages 13 and under enter free. (504) 433-4000. woodlandsconservancy.org.
COLUMBIA STREET HALLOWEEN BLOCK PARTY: 6:30 p.m., 200 to 500 blocks of Columbia Street, Covington. Party with jack-o'-lantern contest, kids activities, classic cars and live music. (985) 892-1873. covla.com.
ALL SAINTS NIGHT GALA AND INDUCTION CEREMONY: 7 p.m., Club XLIV, Champions Square, LaSalle Street, New Orleans. Induction of new members into the Saints Hall of Fame, with players, executives and alumni, plus food and silent auctions. $75 and up. saintshalloffame.com.
GYPSY CARNIVAL HALLOWEEN PARTY: 10 p.m., Foundation Room, House of Blues, 225 Decatur St., New Orleans. Bon Bon Vivant presents Cabaret Nouveau, Indie blues and gypsy jazz while guests revel with carnival characters, tarot card readers and belly dancers. Costumes, RSVP encouraged. $10 nonmembers. (504) 310-4986. hoursofblues.com/fr.
BOO AT THE ZOO: 5 p.m., Audubon Zoo, 6500 Magazine St., New Orleans. Annual Halloween spectacular at the zoo for children up to age 12, with trick-or-treating "houses," activities, ghost train and concessions. $17. audubonnatureinstitute.org/zoo.
BREWS AND BOOS: 11 p.m., Carousel Gardens Amusement Park, 7 Victory Ave., City Park, New Orleans. Unlimited rides, Jell-O shots, a costume contest, beer, snacks and trick-or-treating for 21-and-older crowd. $30 and up per night. (504) 482-4888. neworleanscitypark.com.
WWII AIR, SEA & LAND FESTIVAL: 9 a.m., Lakefront Airport, 6001 Stars and Stripes Blvd., New Orleans. Three-day festival brings air and watercrafts for up-close and personal experiences, with rides and performances, plus a Victory Parade. Friday is free for all students. $21 and up. (504) 528-1944. airsealandfest.com.
LOUISIANA SEAFOOD FESTIVAL: 11 a.m., Woldenberg Park, 1 Canal St., New Orleans. Three days of celebrating luscious Bayou State seafood, cooking demonstrations, kids area, arts village and music, to benefit the Louisiana Hospitality Foundation. $10 per day and up. louisianaseafoodfestival.com.
VOODOO MUSIC + ARTS EXPERIENCE: Noon, also Saturday and Sunday; City Park Festival Grounds, Friedrichs Avenue, New Orleans. Three-day festival of music, food and arts that has blossomed into a national draw for the Crescent City. Headlining performers include Kendrick Lamar, Foo Fighters, The Killers and LCD Soundsystem. $140 and up. worshipthemusic.com.
PARK-A-BOO: 5 p.m. Friday and 1 p.m. Saturday and Sunday, Lafreniere Park, 3000 Downs Blvd., Metairie. Kiwanis Club of North Kenner sponsors annual three-day Halloween festival primarily for kids under 13. Costume contests, entertainment, characters, stories and more, with food available for purchase. Gates close 45 minutes before the grounds each day. $8 adults, $6 for ages 12 and under. park-a-boo.com.
HAUNTED BOURBON: 7 p.m. Friday, 10 a.m. Saturday and Sunday, Hilton Garden Inn Convention Center, 1001 S. Peters St., New Orleans. Paranormal convention with tours, drinks, a chance to meet teams and raise funds for New Orleans Police Department 8th District. $25 up. (504) 666-7136. hauntedbourbon.com.
"DANSE MACABRE — THE NIGHTMARE OF HISTORY": 11 a.m., Historic New Orleans Collection, 533 Royal St., New Orleans. Halloween-themed tour of the Louisiana History Galleries of the "dance of death." $5. hnoc.org.
PUMPKIN PATCH: Noon to 6 p.m. Sundays, 9 a.m. to 6 p.m. Mondays through Saturdays, St. Mark's Episcopal Church, 3245 Manhattan Blvd., Harvey. Pumpkins, gourds, crafts, baked goods with photographer. (504) 366-0123. stmarksharvey.com.
JAZZ HALF MARATHON AND 5K: 7 a.m., post-race party 8:30 a.m., Lafayette Square, 602 Camp St., New Orleans. Children's Hospital race to benefit the LaNasa-Greco Center for Cancer and Blood Disorders. jazzhalf.com/register.
BOO FEST: 9 a.m. for special-needs families, 10 a.m. to 3 p.m. general public, Lakeview Regional Medical Center, 95 Judge Tanner Road, Covington. Halloween fun with trick-or-treating, activities and more to benefit Adapting and Changing Children's Environments with Successful Solutions. (985) 867-3800. lakeviewregional.com/campaigns/boo-fest.
TRICKIN' AND TREATIN' AT THE COVINGTON TRAILHEAD: 10 a.m., 419 N. New Hampshire St., Covington. Kids event with games, crafts, a pumpkin patch, face painting and the Audubon Nature Institute Wetlands Wildlife Express. (985) 892-1873. covla.com.
HALLOWEEN COSTUME BOO-TIQUE: 11 a.m., New Orleans Healing Center, 2372 St. Claude Ave., New Orleans. Threadhead Cultural Foundation presents annual go-to spot for creative Halloween fashions, with designers, milliners, costumers and mask-makers showing their wares. (504) 505-4113. email@example.com.
BOO DAT — A SPOOKTACULAR SATURDAY: Noon, Outlet Collection at Riverwalk, 500 Port of New Orleans Place, New Orleans. Family-friendly affairs with trick-or-treating at participating stores, bags for kids in costume, face painting and more. riverwalknola.com.
TRUNK OR TREAT AND MOVIES IN THE PARK: 5:30 p.m., Muss Bertolino Stadium, 620 W. Esplanade Ave., Kenner. Kenner Parks and Recreation Department sponsors trick-or-treating activities, followed by a showing of "Casper" at 7:30 p.m., plus costume contest, photos and concessions for sale. No outside food or chairs but blankets encouraged. (504) 468-7231. kenner.recdesk.com.
NOFA'S HALLOWEEN SPOOKTACULAR: 8 p.m., Marrero Lions Club, 2334 Barataria Blvd., Marrero. No One Fights Alone dance/fundraiser for group that fights all types of cancer and helps families with medical bills. BYOB. $25 advance, $35 door. nofaboo2017.eventbrite.com.
ENDLESS NIGHT VAMPIRE BALL: 10 p.m., House of Blues, 225 Decatur St., New Orleans. Black-tie event with performances by bands and DJs, with special events Friday and Sunday for ticket holders. $95 and up. endlessnight.com.
GHOSTLY GALLIVANT LIVING HISTORY TOURS: 10 a.m., 1850 House Museum Store, 523 St. Ann St., New Orleans. Friends of the Cabildo's annual tours and silent auction to explore the French Quarter and state's colorful past. Tours depart every 30 minutes. $25, $20 members, $15 students/seniors/military. friendsofthecabildo.org.
OLDE TOWNE SLIDELL ANTIQUE STREET FAIR: 10 a.m., First, Second and Erlanger streets, Slidell. More than 200 vendors and shops offer antiques, furniture, dolls, vintage jewelry, food and live music. (985) 710-9122. slidellantiques.com.
HOLLY DAZE CHRISTMAS MARKET: 10 a.m., Pontchartrain Center, 4545 Williams Blvd., Kenner. Steinhauer Productions show of arts, crafts, jewelry and more vendors. steinhauerproductions.com.
MUSEUM MASH: 11 a.m. Saturday and Tuesday and Noon Sunday, Louisiana Children's Museum, 420 Julia St., New Orleans. Spooktacular day filled with music, crafts and activities, plus a dance party. Costumes suggested. In line with the museum’s health and wellness initiative, candy will not be distributed. (504) 523-1357. lcm.org.
CRAWLOWEEN AT THE INSECTARIUM: 10 a.m., Audubon Butterfly Garden and Insectarium, 423 Canal St., New Orleans. Kids save $3 off admission if they come in costume to learn about creepy crawlies at this full weekend of bug-themed treats, pumpkins that double as animal exhibits and even a “guess how many maggots are in the jar” contest. $22.95 and up for adults; $17.95 and up for children. auduboninstitute.org.
THE BIG TEASY FESTIVAL: 11 a.m. to 8 p.m., Jefferson Performing Arts Center, 6400 Airline Drive, Metairie. John "Spud" McConnell and friends host inaugural caffeine celebration rescheduled because of weather as a fundraiser for CASA Jefferson. Sip samples, shop and shuffle with beverages, live music and crafts, $10. (504) 529-6598. bigteasy.com.
OKTOBERFEST AND DACHSHUND RACE: Noon, Lamb of God Lutheran Church, 57210 Allen Road, Slidell. German food, wine, beer, music, bounce house, arts and crafts, and the first "wiener dog race." Food for purchase. (985) 847-1877. logslidell.com.
HARVEST FESTIVAL: Noon, Mandeville Wharf, Crescent Park, North Peters and Marigny streets, New Orleans. French Market's inaugural autumnal festivity, with kid's zone, arts market, food and beverage, and live music. frenchmarket.org.
NEW CANAL HAUNTED LIGHTHOUSE: 4 p.m., New Canal Lighthouse, 8001 Lakeshore Drive, New Orleans. A spiderweb maze, games, storytelling, arts and crafts, music, costumes and candy. Children must be accompanied by adult. Beverages for purchase. $5. saveourlake.org/haunted.
TRUNK OR TREAT: 5:30 p.m., St. Charles United Methodist Church, 1905 Ormond Blvd., Destrehan. Community invited to bring cars and trucks for decoration and trick-or-treating in the parking lot of the church. Awards for decorations. (985) 764-8292. stcharlesumc.com.
COSTUMES & COCKTAILS PRE-HALLOWEEN COSTUME SHOWDOWN: 7 p.m., Roy E. Glapion Hall, Zulu Social Aid and Pleasure Club, 730 N. Broad St., New Orleans. Costume competition for clubs and group in the metro area, with prizes for costumes and attendees, with music and door prizes. $5 and up. (225) 288-1095. eventbrite.com.
CITY PUTT HALLOWEEN PARTY: 5 p.m., City Putt, 8 Victory Drive, City Park, New Orleans. Enjoy a cocktail while putting on one course, with treats, raffles and giveaways. $10. (504) 483-9385. neworleanscitypark.com.
HALLOWEEN SPOOKTACULAR: 6 p.m., New Orleans Recreation Department centers, throughout the city. Candy, costume contests, carnival games, prizes and more at the nine centers. A "Thriller" flash mob at New Orleans City Hall kicks off the fun. nordc.org/activities/special-events.
DANTE'S DISCO INFERNO FANTASTIQUE: 6 p.m., Music Box Village, 4557 N. Rampart St., New Orleans. Halloween party with trick-or-treating for kids at 6 p.m. and inferno-themed disco party for adults at 7 p.m. Costumes required. $18.
GRETNA GOBLIN NIGHT: 6:30 p.m., River Front Amphitheatre, Huey P. Long Avenue and First Street, Gretna. Children 10 and under enjoy a "No Tricks, All Treats" evening of fun on the river batture downtown. gretnala.com.
A TASTE OF OLDE TOWNE: Through Nov. 29, various locations throughout Slidell. Inaugural wine and dine event, with Champagne brunch, music and art. Prices vary per event. atasteofoldetowne.com.
Visit theadvocate.com/new_orleans for more events and a complete listing of what's going on this weekend.
Compiled by Marchaund Jones.