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Best Free and Fun Things To Do on Long Island with Kids May 2025

The Harbes Family Farm celebrates moms/grandmothers and its season opening in May. Photo courtesy of the event
The Harbes Family Farm celebrates moms/grandmothers and its season opening in May. Photo courtesy of the event
4/28/24 - By Jaime Sumersille

From Mother's Day to Memorial Day, we've rounded up fun things to do all month long on Long Island!

May is here, and it's shaping up to be a stellar month. We're excited to welcome back highly anticipated annual events like the Jones Beach Air Show and the Fleece and Fiber Fair at Hallockville Farm Museum. This month also sees the reopening of Long Island's largest water park, Splish Splash, which is sporting a new water playground. 

Read on for all the ways to pack your calendar this month on Long Island. 

More Great Things to Do with Kids in April on Long Island

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Top Things To Do on Long Island with Kids in May

I Love My Park Day

Various Locations–FREE
Saturday, May 3, 2025
I Love My Park Day, held annually on the first Saturday in May, attracts thousands of volunteers to help clean, improve, and beautify New York's state parks and historic sites. READ MORE

Long Island Fairy Festival at Sands Point Preserve

Sands Point
Saturday, May 3, 2025
A sprinkle of fun and fanfare is on tap at this celebration of fairies, elves, and other fantastic woodland creatures that gather in the hollows at the Sands Point Preserve. READ MORE

Junie B. Jones at Argyle Theatre

Babylon
Opens Saturday, May 3, 2025
This delightful adaptation of Barbara Park’s best-selling books is brought to life on the Argyle Theatre stage as Junie B. Jones The Musical. READ MORE

Long Island Live Steamers Mini Train Rides

Brookhaven–FREE
Season begins Sunday, May 4, 2025
Chug on down to Long Island Live Steamers' twice-monthly Sunday public run days. Ride steam, diesel, and electric trains operating on eight acres of scale tracks.  READ MORE

Story Time by the Bay at the Long Island Maritime Museum

West Sayville
Begins Thursdays, May 8, 2025
Listen to a story, create a fun ocean-themed craft, and explore the Long Island Maritime Museum! READ MORE

Our Backyard Reopens at LICM

Garden City
Opens Saturday, May 10, 2025
Kids can enjoy the outdoors with the Long Island Children's Museum's seasonal "Our Backyard" exhibit.  READ MORE

Baby Animal Day at the Suffolk County Farm

Yaphank
Saturday, May 10, 2025
Cozy up to the Suffolk County Farm’s resident animals and enjoy wagon rides, food trucks, and so many hands-on interactions during Baby Animal Day. READ MORE

Big Bounce America Long Island

Hicksville
Starting Saturday, May 10, 2025
Big Bounce America brings an action-packed bouncy-house wonderland to Long Island. Hop inside the self-described "world's largest bounce house" or one of its other inflatable fun zones. READ MORE

Mother's Day Weekend at Benner's Farm

Setauket
Saturday, May 10-Sunday, May 11, 2025
See the new babies born this spring, walk around the farm, or swing on the epic swing.  READ MORE

Mother’s Day Festival at Harbes Family Farm & Vineyard

Mattituck–FREE for moms
Saturday, May 10-Sunday, May 11, 2025
The Harbes Family Farm celebrates moms/grandmothers and its season opening. As a special gift, moms enjoy FREE admission to the Barnyard Adventure all weekend.  READ MORE

Fleece and Fiber Festival at Hallockville Museum Farm

Riverhead
Saturday, May 17, 2025
Engaging demonstrations and hands-on learning headline the Fiber and Fleece Festival at Hallockville Museum Farm. Don't forget to visit with the resident sheep, llamas, and alpacas—oh my! READ MORE

Children's Candle Class at Bayard Cutting Arboretum

Great River
Saturday, May 17, 2025
In this workshop at the Bayard Cutting Arboretum, participants can expect to learn a unique layering process to utilize recycled wax and choose from a variety of spring scents to create their very own candle. Each child will receive supplies to create two 8 oz. candles. READ MORE

Asian-American Festival at North Hempstead Beach Park

Port Washington–FREE
Saturday, May 17, 2025 (parking fee)
Cultural performances and a lively market highlight the free Asian-American Festival in Port Washington. READ MORE

Vintage Wings & Wheels at the Bayport Aerodrome Society

Bayport–FREE
Sunday, May 18, 2025
The Bayport Aerodrome Society boasts free, high-flying fun, including vintage cars, old airplanes, biplanes, and a live band. READ MORE

Cradle-Con Comic Expo at The Cradle of Aviation

Garden City
Saturday, May 17-Sunday, May 18, 2025
The Cradle of Aviation presents Cradle-Con, a one-stop shop and exhibition of all things related to comic book culture. Cradle-Con offers opportunities for readers to meet local comic book creators, for collectors to hunt for rare books and toys, for cosplayers to show off some of their best work, and for gamers to get their game on. READ MORE

Jones Beach Air Show 2025

Wantagh–FREE
Friday, May 23-Sunday, May 25, 2025 (parking fee only)
The 2025 Jones Beach Air Show, formerly known as the Bethpage Air Show, returns to Jones Beach on Memorial Day weekend, featuring performances by its showstopping headliners, the United States Air Force Thunderbirds. READ MORE

Splish Splash Park Season Opening 2025

Riverhead
Saturday, May 24-Monday, May 26, 2025
Splish Splash, Long Island's largest water park, reopens for the summer season with an all-new kid zone. The 96-acre park has two dozen rides, ranging from tame kiddie pools to dark tunnels of terror.  READ MORE

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About the Author

Jaime Sumersille
Jaime Sumersille, a mom of two boys in Bellmore, has been writing for Mommy Poppins for over a decade. She’s always exploring Long Island’s beaches, parks, and new attractions, and loves sharing those experiences on the site. Jaime enjoys adding her family’s perspective to Mommy Poppins’ mission.
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