6:30 a.m. The opening ceremony for the Avon Walk for Breast Cancer will take place at the Hudson River Park's Pier 84, 43rd Street and 12th Avenue.
8:30 a.m. Comptroller William Thompson will keynote the Homebuyers and Foreclosure Prevention Seminar at Medgar Evers College, 1650 Bedford Avenue, in Brooklyn.
10 a.m. Al Sharpton will call upon Isiah Thomas to apologize to black women at the National Action Network, 106 West 145th Street at Lenox Avenue.
10:45 a.m. Sen. Eric Adams will urges the governor to allow State Police to assist Suffolk prosecutors with investigating the shooting death of NYPD officer Sonia Garcia in front of One Police Plaza.
Noon. Brooklyn District Attorney Charles Hynes will preside over the 88th Precinct H.E.L.P. Graduation at 350 Jay Street in Brooklyn.
1 p.m. The 26th annual Brooklyn Columbus Parade will take place on 18th Avenue from 61 to 84 streets in Brooklyn.
2 p.m. The 5th Annual Little Italy Columbus Day Parade will take place on Canal Street between Mulberry and Baxter streets.
2 p.m. Council member Joel Rivera will lead a youth meeting on Bronx gun violence at the Old Fordham Library at Edgar Allen Poe Park between Kingsbridge Road and 190th Street.
10 a.m. American Institute for Architects will host an Electronic Waste Recycling Day, collecting working and non-working computers, monitors and computer accessories at
LaGuardia Place between West 3rd and Bleecker streets.
11 a.m. The Columbus Day Parade will begin on Madison Avenue between 43rd and 47th streets and continue north on 5th Aveunue from 44th Street to 79th Street and end at 79th Street.