Steuben Day Parade and “Oktoberfest”, Manhattan.
Little Red Lighthouse Festival — LIghthouse tours, live music, hayrides and, of course, a reading of the book — Fort Washington Park, Manhattan.
Sandcastle contest, Rockaway Beach.
Union Square Tour.
Chess lessons, Bryant Park.
Free Saturdays at the Jewish Museum, UES.
Stargazing (telescopes provided) at Inwood Park.
Mexican Day Parade, Manhattan.
Bronx Native American Festival, Pelham Bay Park.
More free kayaking, this time on Staten Island (also: Manhattan and Queens).
Free tree giveaway for home and property owners and community groups from the Million Trees NYC program, Brooklyn.
Miniature Golf among the rockets by the Hall of Science in Flushing Meadow Park.
the Great Irish Fair — the usual fairground activities and two days of irish bands and step dancers — Coney Island.
New Island Festival — Last weekend of free performances (and some you buy tickets for), dutch food and imaginary urban archaeology, a free ferry ride away on Governor’s Island.
The legendary Feast of San Gennaro in Little Italy.