10 Fun Things to Do in Port Jefferson With Kids: A Family Guide for a Day Out

Things to do in Port Jefferson, New York
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Nestled in the North Shore of Long Island, picturesque Port Jefferson is one of those towns that feels magical and calm, yet lively and fun.  

At a Glance: 

  • If you’re searching for things to do in Port Jefferson with kids, this charming waterfront village delivers classic Long Island family fun—no overplanning required.  
  • The beauty of Port Jefferson Village is that everything is walkable. You can park once and spend the entire day exploring the harbor, popping into shops, grabbing a bite, and letting the kids roam safely within view. 
  • Whether you’re local or visiting from NYC, there’s something refreshingly low-key about this harbor town. It’s not flashy, and that’s exactly why families love it. 

If you grew up on Long Island or moved here from the city like many of us, chances are you’ve spent at least one sunny afternoon strolling through Port Jeff Village with an ice cream in hand. With its charming harbor views, walkable downtown, and plenty of kid-friendly spots, Port Jefferson, in the North Shore, is one of those easy, low-stress family day trips that always delivers. 

Whether you’re planning a summer beach day, a fall festival outing, or just looking for something different to do with the family year-round, here are the best things to do in Port Jefferson, New York, with kids—all grouped so you can plan your visit with ease. 

Psst… Check Out 12 Things to Do in Suffolk County with Kids: A Family Guide for a Day Out

Fun Things to Do With Kids in Port Jefferson, Long Island 

Harbor Views, Boats & Waterfront Outings in Port Jefferson 

Port Jefferson Village Center 

101 E Broadway, Port Jefferson 
Hours: Open daily, 8 am-8 pm (check site for seasonal hours) 
Admission: Free 

Right along the harbor, this community hub is a must-stop for families. Kids can watch boats come and go, run around the open green space, or attend seasonal events like outdoor concerts and family movie nights. Inside, there’s often art exhibits and cultural programming— making it one of the easiest (and free!) things to do in Port Jefferson with children. 

Port Jefferson Ferry Terminal (Bridgeport & Port Jefferson Steamboat Company) 

102 W Broadway, Port Jefferson 
Hours: Open to the public, but check the website for the ferry schedule (if you’re taking the ferry, it’s recommended to be there 30 minutes prior to departure time) 
Passenger fare: $23 (one way) & $39 (round-trip) per adult; free for children up to 12 y/o 

Even if you’re not sailing to Connecticut, watching the massive ferry dock is thrilling for little ones. If you’re up for an adventure, hop aboard for a mini getaway—kids love the novelty of riding a “big boat,” and the harbor views are gorgeous year-round. 

Harborfront Park 

101A E Broadway, Port Jefferson 
Hours: Sunrise to sunset 
Admission: Free 

Pack a picnic and spend time overlooking the water. There’s open space to toss a ball, benches for parents to relax, and plenty of room for stroller-friendly walks. In warmer months, you’ll often find families fishing along the dock. 

Beaches & Outdoor Adventures in Port Jefferson 

West Beach 

350 Cliff Rd., Port Jefferson 
Hours: Seasonal, typically 10 am–6 pm during summer 
Admission: Village resident free; non-resident daily fee applies 

This small, calm beach is perfect for younger kids who want to splash safely. Bring sand toys and spend a slow morning building castles while watching sailboats drift by. It’s quieter than larger Long Island beaches—a hidden gem for families. A couple of minutes away, by car, you can find Belle Terre, an affluent neighborhood known for its magnificent mansions and trails. 

Rocket Ship Park  

34 Roessner Ln, Port Jefferson 
Hours: Sunrise to sunset 
Admission: Free 

A local favorite playground known for its rocket-themed climbing structure. It’s shaded, manageable in size, and close enough to downtown so that you can pair it with lunch or ice cream afterward. 

Museums & Educational Stops in Port Jefferson 

Theatre Three 

412 Main St., Port Jefferson 
Hours: Check website as box office hours vary; performances year-round 
Tickets: Typically $20–$40 

This historic Main Street theater offers family-friendly productions, holiday shows, and youth performances throughout the year. It’s a wonderful introduction to live theater for kids: intimate, welcoming, and right in the heart of the village. 

Mather House Museum (Port Jefferson Historical Society) 

115 Prospect St., Port Jefferson 
Hours: Monday and Tuesday, closed; Wednesday-Sunday, 10 am-4 pm 
Admission: Free; donations welcome 

Step inside this 19th-century home to give kids a peek at Port Jeff’s maritime past. It’s a quick but worthwhile stop, especially for elementary-aged kids studying local history. Pair it with a longer visit to the Long Island Maritime Museum to win a true ocean lover’s heart! 

Sweet Treats & Kid-Approved Eats in Port Jefferson 

Kilwins Port Jefferson 

109D Main St., Port Jefferson 
Hours: Daily, 12 pm-8 pm 
Price: Ice cream cones start around $6 

If you’re looking for classic small-town vibes, this is it. Handmade fudge, caramel apples, and creamy ice cream make Kilwins a guaranteed crowd-pleaser. The smell alone will lure your kids inside!

The Steam Room 

4 E Broadway, Port Jefferson 
Hours: Daily, 9 am-9 pm 
Price: $15–$30 per person; check menu for updated prices

A Port Jeff staple overlooking the harbor. Known for its chowder and lobster rolls, but also casual enough for families. Outdoor seating makes it easy with kids and babies. 

Indoor Fun for Rainy Days in Port Jefferson 

Port Jefferson Bowl 

31 Chereb Ln., Port Jefferson Station 
Hours: Daily, 9 am-11 pm; check for open bowling times 
Price: Approx. $6–$8 per game + shoe rental 

 Just minutes from the village, this is a great backup plan if the weather doesn’t cooperate. Cosmic bowling nights are especially fun for older kids. 

Seasonal Festivals & Events in Port Jefferson 

Port Jefferson Village is known for its family-friendly events year-round. Some highlights include the Charles Dickens Festival in December with costumed characters, carolers, and Victorian charm throughout Main Street; ice sculptures in peak wintertime; the Harvest Festival during fall, with pumpkin decorating, live music, and kid activities; and free outdoor music at the Village Center lawn, part of the Summer Concert Series. 

Psst… Check Out Long Island 250 Events: Celebrate America’s 250th in Suffolk County

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