Free Fitness Classes Citi is offering free 45-minute fitness work-outs this month in front of a soon-to-open new Tribeca Citibank branch at 388 Greenwich. Mats are provided. The classes are Do More Fitness and DanceBody (Oct. 20), Real Pilates (Oct. 21), and Be Humble Movement and Rumble (Oct. 23). Above, a Do More Fitness class. Class sizes are limited. For hours and registration, click here.

It's Our Park Day Celebrations are sponsored by Friends of City Hall Park on Wed. Oct. 20, 9 am to 1 pm. All events start at the park's Broadway and Warren Street gate. From 9 am to 1 pm, there will be chalking on the park’s paths as well as leaf raking and daffodil planting on the northwest lawn. At 10 am Kate Mansfield, from the New York School of T’ai Chi Chuan, will give free classes for all levels.

Cooking with the Chefs Rocco DiSpirito returns as host of Dine Around Downtown with free Zoom cook-alongs from Malibu Farms (Nov. 18, 4 pm) and a holiday dessert demonstration from The Beekman (Dec. 16, 4 pm). The cooking demonstrations provide viewers with  easy-to-replicate dishes from the chefs' restaurants. Register at downtownny.com/dinearound. Past episodes of “Dine Around Downtown: Cooking At Home Edition” can be viewed on the Downtown Alliance YouTube channel.

Clothing (and more) Sale The 12th annual Friends and Fashion Fundraiser for PS 234 will take place Oct. 18-22, 10 am-6 pm, at 55 Warren St. There will be a wide variety of new and gently used clothing as well as handbags, costume jewelry and shoes. For more information, click here. 

Halloween Spooktacular Halloween Fashion Show and Costume Contest, live music, bagel brunch, pumpkin decorating, Make Your Own Costume and more. At Church St School for Music and Art, 41 White St., Oct. 24, 11 am–2 pm. $15 per person; 2 and under free. Attendees 18 and over must show proof of vaccination; all those 2 and up must wear a mask. Tickets here.