Happening in New York

About a hundred vendors set up behind the New York Hall of Science until midnight, entry is free and most dishes are capped at a few dollars.

47-01 111th Street, Corona, NY 11368 (7 train to 111th St, then four blocks south)

GMHC's ballroom competition is underway at Terminal 5 and runs until 2am, free and 18 and over, though the RSVP list has closed and entry is now standby only.

610 West 56th Street, New York, NY 10019

The official afterparty for the Neopets pop-up runs 10pm to 2am at Purgatory in Bushwick, free RSVP through DICE, 21 and over.

675 Central Avenue, Brooklyn, NY 11207

A free family movie night in the South Bronx, the Ice Cube and Keke Palmer Pop Warner football story, on the playground at Mill Pond Park.

65 E 149th St, Bronx, NY 10451

Culture Lab's open-air lot runs free weekend concerts, The Brighton Beat closes tonight at 8pm and Sunday brings Bianca Grooves at 5pm and the State Liquor Authority Band at 7pm.

5-25 46th Avenue, Long Island City, NY 11101

Angélique Kidjo headlines the free SummerStage bill at Rumsey Playfield with Cuban funk band Cimafunk and DJ Freshy K, no ticket and no RSVP, doors at 6pm for a 7pm downbeat.

Rumsey Playfield, Central Park, New York, NY 10021 (enter at Fifth Ave and E 69th St)

Closing night of the Public Theater's Delacorte season, Daniel Sullivan's production with Raúl Esparza and Lily Rabe, free but only through the noon distribution lines, the TodayTix lottery, or the standby line from 6pm.

Delacorte Theater, Central Park, New York, NY 10024 (enter at W 81st St and Central Park West, or 79th St and Fifth Ave, NOT the residential building at 81 Central Park West)

Green-Wood marks 250 years since the battle fought on its own ground with costumed soldiers and spies, eighteenth-century music, invisible-ink and tricorn workshops, and a parade to Battle Hill.

500 25th Street (Fifth Avenue and 25th Street), Brooklyn, NY 11232

The Charlie Parker festival's Harlem prelude pairs a live James Stewart Quartet set at 1pm with Christine Turner's 84-minute Sun Ra documentary at 2pm and a conversation after, indoors and free with an RSVP form that is still open.

144 W 125th St, New York, NY 10027

Seventy-odd food vendors on Breeze Hill, free to walk in, and the market opens rain or shine even if a wet morning thins the stalls.

Breeze Hill, Prospect Park, Brooklyn (B/Q/S to Prospect Park)

The Ray Delgado Project closes out the 33rd season of Sunday concerts at the Dana Discovery Center on the Harlem Meer, two hours of jazz, soul, Latin and world music.

Inside Central Park at 110th Street between Fifth and Lenox Avenues, New York, NY (2/3 to Central Park North-110th St)

Free twenty-minute guided kayak trips from Bushwick Inlet Park with trained trip leaders, walk up, no experience or equipment needed.

Bushwick Inlet Park, Brooklyn. The organization names only the park, so look for the NBCB kayak launch rather than a street address

Coney Island USA judges its second Pee-wee look-alike contest on West 12th Street for Paul Reubens's birthday, with categories for Playhouse characters, movie characters and pets, free to watch and free to enter.

West 12th St at Surf Ave; registration at 1208 Surf Avenue, Brooklyn, NY 11224

Madison Avenue closes from 38th Street down to 27th for the Pakistan Independence Day parade, with a street festival at the Madison Square Park end from 2pm.

Parade: Madison Ave from E 38th St to E 27th St. Festival: Madison Ave between E 24th and E 25th St, and E 26th St between Madison Ave and Park Ave South, NoMad/Flatiron

US Open Fan Week opens with free grounds access at Flushing Meadows, a Fountain Plaza concert and the Qualifying Wildcard Challenge on the field courts, though every adult needs the free Fan Access Pass first.

Flushing Meadows Corona Park, Flushing, NY 11368

Rangers spend ninety minutes in High Rock Park teaching how to identify Staten Island's plants and animals with the iNaturalist app.

200 Nevada Avenue, Staten Island, NY

DJ Shufflepuck spins 1940s big band, jump blues and 1950s R&B for open-air social dancing on the plaza above Turtle Pond, with lessons during the band breaks.

King Jagiello Plaza, E 79th St, east side of Turtle Pond, Central Park, New York, NY 10024

Local plant shops, independent growers and small nurseries fill the Culture Lab lot for six hours, entry is free and donations are asked for rather than required.

5-25 46th Ave, Long Island City, NY 11101