By Kings, I'm assuming you mean King's county in New York, or the borough of Brooklyn. If I've made a mistake, do let us know along with a clarification of which Kings you are heading to :)
Coney Island is a perfect getaway with nearly 3 miles of sandy beaches, sunny skies and rolling waves. The beach and boardwalk here have courts for beach volleyball, handball and basketball and various playgrounds and amusement rides like the Cyclone Roller Coaster, the Wonder Wheel and the Parachute Jump.
Some more attractions on this island include New York aquarium, the Abe Stark Ice Skating Rink or the MCU park baseball stadium, the Nathan's Famous Hot Dogs and its famous eating contest.
Brighton Beach, located at Brightwater Ave., Brooklyn, stretches east from Corbin Pl. to Coney Island. This, being one of the better beaches in NY, will be found crowded most of the times. This beach is more of a neighborhood than a resort area.
Wickham's Fruit Farm is a great place to take your kids to pick fruit - whichever fruit is in season for picking during your trip! June-July sees blackberries, raspberries and strawberries, while September-October sees apples. Be warned - fruit picking is open only as long as stocks last :)
And here are some tips for after you've picked as many apples as you can:
So what to do with a giant bag of apples? Brooklyn-ize them with local toppings! Head over to Two for the Pot in Brooklyn Heights or D'amico Foods in Carroll Gardens. Here you can find fresh spices like cinnamon, nutmeg, sugar, and cloves to make an autumn-esque powder to sprinkle on top. Prefer caramel or chocolate? Try the caramel dip or chocolate syrup from Fox's- also made right here in Brooklyn. If you're a peanut butter lover like me, you should go to The Nut Box on Smith Street in Carroll Gardens, where you can make your own peanut butter.
(Source: Becoming Brooklyn)
Jacques Torres Chocolate Store on 350 Hudson St. will make your kids believe that they've died and gone to heaven. While the store is filled with delectable chocolate goodies, you can watch through glass walls and see how these goodies are made! Here's a blog account of the tour.
Upon entering the store, you are immediately embraced by strong chocolate scent, all you can see is a wide selection of chocolate and obviously, all you can think of is chocolate. It was a truly delightful experience to enjoy their hot drinks, cookies and truffles! The store itself is a pleasant environment too. It isn't exactly cheap, but the chocolate is completely worth it!