Stone Barns Center for Agriculture – A favorite more local place is Stone Barns Center - best cup of coffee and cutest baby piglets and best free range eggs in all of Westchester. Best gift shop, too. On the way there is a church with stained glass windows by Chagall.
Dobb’s Ferry - Dobb's ferry has some good ethnic restaurants and a go greenberry yogurt, and down by the Hudson there is a ship-shaped playground. They have a bike shop and a kids' consignment store. Check it out when you are going to the Hastings-on-Hudson farmer's market.
Farmer’s Markets - When you are going to the Larchmont or Mamaroneck Farmer's market (Mamaroneck has a favorite – Orwasher’s Bread!) don't miss playing at Harbor Island Park. They have playground equipment I've never seen before, a (dirtyish) little beach, and fountains for the kids to play in for a small admission. Boats galore!
Bronxville is right next door. Go to Il Bacio for Gelato, the little movie house for a movie, and there is a Starbucks with a Clover machine. Have the El Salvador. Lovely
Beaches: Jones beach, Fire Island (Robert Moses State Park)-- great day trips: advice, go during the week early in the morning- best way to avoid the crowds....about an hour....if you make it to fire island there is a lovely light house you can visit...bring your kites!
Camp in MA (north of Boston) & then spend some time in cape cod ...about 5 hours away & cape cod has PERFECT beaches for young children....SUPER gentle waves & worth the trip----the long island beaches are great but the waves are dangerous even for adults at times- not that relaxing if you have "runners" for children:)
One of the best investments you can make is children's museum pass @ Stepping Stones in Norwalk- you can use it to get in free to CMOM in Manhattan, Brooklyn Children's Museum, Staten Island Children's, & Long Island's....not to mention pretty much any children's museum anywhere in the states....very convenient!
Cold Spring- favorite favorite favorite village in the Hudson Highlands- an hour north, the drive is along the Hudson w/ beautiful views.... You can get on the train in Dobbs Ferry and take a GORGEOUS ride down the Hudson, then get off at Cold Spring and walk everywhere. Lots of hiking in the area if you are up for a hike (Appalacian trail, to name one), adorable main street, restaurant "the Depot" next to the train station, & a park in the middle of town with a FENCE & TONS of toys residents leave out for community use...(imagine Lakeside or the ND playground..... Kids have a BLAST there & you get to sit & sip coffee & have some time to talk:)... There’s also a great French restaurant, LE BOUCHON, with French Bistro fare. Best steak frites around and 8 kinds of moules! Also, Coldspring is not too far from Wappingers Falls if you want to make the trip on a Sunday & go to church there...(we LOVED the parish there when we visited)
Greenburgh Nature Center. Very close, nice hiking. If you pay to go into the manor house kids get to pet Chinchillas & hedgehogs & snakes with the naturalist....otherwise free
Central Park. Enough said! Spray parks EVERYWHERE in the city- go in for a day, pack your picnic & your suits & have fun! Riverside park is also lovely & a favorite spot for us! (where You've Got Mail was filmed, if you remember it!)
Stamford Nature Center- about 45 minutes from SVS- they have a working farm that the kids love as well as a GREAT "nature" themed playground complete with a giant log you walk through to get inside...
Multiple pick-your-own farms upstate- Fishkill farms is a good experience, but there are lots!
Muscoot Farm- another working farm, also about 45 minutes north
Rainbow Ridge-- yet another farm
Kenisco Dam- 15-20 minutes up the BRP; very nice playground & HUGE paved walking circle that is flat-hard to find around here!!
Wave Hill –A spectacular 28-acre public garden and cultural center overlooking the Hudson River and Palisades in the Bronx, Wave Hill's vibrant landscape is one of the most beautiful spots in New York City. The gardens change with the seasons and their Café is a great place for a cup of tea or coffee with a baked good, soup or salad. Free Entrance all day Tuesdays during off-peak months (November–April, July & August), 9 a.m. to 12:00 noon on Tuesdays during peak months (May, June, September, October), and on Saturdays free 9am to noon year-round.Free Parking is down the hill on the right. They have free shuttle service. 675 West 252nd Street; Bronx, NY 10471-2840 (718) 549-3200
Pack a lunch and go to the New York Hall of Science in Queens. This place is amazing with lots of indoor and outdoor stuff to do for the kids and adults will find it interesting as well: http://www.nysci.org/
Take the Staten Island Ferry-free and fun for the kids to ride a big boat. http://www.siferry.com/
The Zoos here are amazing. You can get a zoo membership for the whole family, and that gets you admission to the Bronx Zoo (huge and full of the most unusual and usual animals), Prospect Park Zoo, Central Park Zoo, Queens Zoo and the New York Aquarium.