Where: Lakeside Rink, East Drive, Prospect Park
When: Saturday and Sunday
The LeFrak skating rink at Lakeside is opening their ice rink for the winter season this weekend, starting on Halloween with a “Monster Skate” from 12 p.m. to 6 p.m.
► Give Your Legos to Ai Weiwei
Where: Brooklyn Museum, 200 Eastern Parkway, Prospect Heights
When: During museum hours, 11 a.m. to 6 p.m.
Help China's most famous activist/artist Ai Weiwei create his newest piece of artwork by donating your old Lego blocks in front of the Brooklyn Museum every day through Nov. 29. Weiwei reached out to the public for the toy blocks after the Lego company refused to complete a bulk order for his project, he said.
Friday, Oct. 30
Where: Littlefield, 622 Degraw St., Gowanus
When: 10:30 p.m.
Dust off your costume and pull out your dancing shoes for Littlefield's Halloween pre-party with DJ Steve Reynolds. There will be drink specials, a photo booth and lots of candy.
Saturday, October 31
Where: Fort Greene Park, Fort Greene
When: 11 a.m.
Dogs celebrate Halloween at this canine costume carnival. Last year, a dog dressed as public radio host Ira Glass won first place.
Where: The Old Stone House at Washington Park, 363 Third St., Park Slope
When: Registration from 1 p.m. to 1:55 p.m., Contest 2 p.m. to 3 p.m.
This year's theme is "Wild Wild Life," which participants are free to interpret with a costume of their own making. Entrants will compete for more than a dozen prizes including the Tesla Award (Best Stroller/Wagon), Wild, Wildlife Award (Best Animal), and Wildlife Conservation Award (Best Use of Recycled/Green Materials). Winners get a ribbon and a place of honor in the Park Slope Halloween parade.
Where: Cobble Hill Park
When: 4 p.m.
Spooky costumes, trick or treating and more at the Cobble Hill Association's yearly Halloween parade for kids in the neighborhood.
Where: Fulton Park, corner of Stuyvesant Avenue and Fulton Street, Bed-Stuy
When: 4 p.m.
Celebrate Halloween with this annual costume parade at Fulton Park. Maps will be handed out detailing the best blocks to trick-or-treat in the neighborhood.
Where: The Bell House, 149 7th St., Gowanus
When: 9 p.m.
Brooklyn’s sweaty, friendly monthly dance party will go spooky for Halloween. Tickets are $10 before midnight, $15 after.
Where: Sankofa Aban Bed and Breakfast, 107 Macon St., Bed-Stuy
When: 9 p.m. to 1 a.m.
Listen to live salon jazz and hear stories of music and community at this brownstone show. A traditional, Southern fish fry buffet is served during intermission, and the night continues with an open mic session. Tickets start at $40.
► Halloween Flow at Sacred Brooklyn
Where: Sacred Brooklyn, 197 Clifton Place, Bed-Stuy
When: 9:30 p.m. to 10:45 p.m.
Get your vinyasa on in style at this late-night Halloween yoga session. Prizes will be handed out for best costume.
Sunday, Nov. 1
Where: Starts at 558 St. Johns Place, Crown Heights
When: 2 p.m.
In the tradition of Haitian “rara” musicians and storytellers, a group of artists and performers from the Haiti Cultural Exchange will parade through the streets of Crown Heights on Sunday, telling stories, performing poetry and making music. Join the procession as it winds its way through the neighborhood, or join for an after-event artist talk at the Berg’n beer hall.
Where: 41 Seabring St., third floor, Red Hook
When: Cooking class begins at 3 p.m.; dinner and presentations at 5 p.m.
Celebrate the Mexican holiday Día de los Muertos by making more than 200 tamales and feasting on them in a family-style dinner to commemorate the occasion. Guests are also encouraged to bring images and objects for a communal altar that will honor deceased family members and friends. Tickets are at $15 for adults and $5 for children.
Where: Jalopy Theater, 315 Columbia St., Columbia Street Waterfront District
When: 3 p.m.
Tickets are $15 to see kid-friendly band Rolie Polie Guacamole play songs from their new album “Chips and Salsa” while attendees show off their best costumes.
These listings were compiled by DNAinfo's Brooklyn reporters Camille Bautista, Rachel Holliday Smith, Leslie Albrecht, Rosa Goldensohn and Nikhita Venugopal.