Some weekends it feels like all the summer fun is happening at once—not that we're complaining! There's so much going on it would be impossible to do it all, even though it would be fun to try...

Saturday brings City of Water Day to the Seaport and Roosevelt Island, plus Open Garden Day in all five boroughs, Bastille Day in Downtown Brooklyn, the Caribbean Festival at the Brooklyn Children's Museum, a FREE indoor (read: air-conditioned) interactive concert, and a magical scavenger hunt and firefly picnic in the Bronx.

On Sunday, cheer the Disability Pride Parade from Madison Square Park to Union Square, head to Governors Island for its annual Family Fun Day, or allez-y vites to celebrate Bastille Day in Midtown East. Plus you can learn some Second Line moves at SummerStage's Family Day in Central Park.

Staten Island's Midland Beach hosts Back to the Beach all weekend, with live music, rides, and fab food—and it's a snap to get there from Manhattan. This weekend you can also rev your engines at the NYC E-Prix in Brooklyn, or conjure feats of magic at the New York Historical Society's Houdini Weekend

And that's just the tip of the calendar iceberg: Check out free outdoor movies, the best pools for toddlers and kids, a whopping list of 31 great summer day trips, and our boredom-busting rundown of 100 free things to do with kids this summer.