A draft horse cuts a ruler-straight furrow through a Hopewell Township field while, elsewhere in New Jersey, vintage engines rumble, jazz musicians warm up, and giraffes lean over their fences to inspect the morning crowd. September may bring school schedules and earlier sunsets, but it certainly does not send family fun into hibernation.
This month’s calendar is packed with outings that cost nothing to enter, from waterfront festivals and porch concerts to hands-on museums and two remarkably generous zoos. Some events offer enough entertainment to fill an entire afternoon; others make easy additions to a picnic, hike, or downtown stroll.
Food, rides, and souvenirs may cost extra at the festivals, of course, but families can still enjoy the music, demonstrations, animals, exhibits, and people-watching without opening their wallets. Pack some snacks, throw a blanket in the car, and keep these 14 free September adventures handy for your next open weekend.
1. Riverdale Labor Day Street Fair and Food Truck Fest
Newark Pompton Turnpike trades moving traffic for strolling families on Labor Day, when Riverdale turns its main thoroughfare into one enormous neighborhood block party.
The free festival runs from 10 a.m. to 5 p.m. on Monday, September 7, filling the closed roadway between Newbury Place and Cotluss Road with vendors, music, games, and the tempting smells of festival food.
More than 100 exhibitors are expected, including craftspeople, merchants, and community organizations. Kids will naturally make a beeline for the dedicated children’s area, where inflatables, slides, games, face painting, and sand art provide plenty of ways to spend their remaining end-of-summer energy.
Some activities carry separate charges, but watching the entertainment and exploring the fair are completely free. Live bands, dancing, and martial arts demonstrations keep the performance area busy throughout the day.
Meanwhile, more than 15 food trucks and vendors serve everything from cheesesteaks and gyros to zeppole, kettle corn, and Italian ice. Buying lunch is optional, so packing sandwiches remains a perfectly respectable strategy.
Arrive closer to opening time if you want a simpler parking experience and a little breathing room around the booths. Since the event is held rain or shine, check the forecast, bring the stroller if needed, and consider sunscreen and umbrellas equally sensible Labor Day equipment.
2. Glassboro Car Show and Food Truck Festival
Rows of polished chrome transform Downtown Glassboro into an open-air automotive museum on Friday, September 4.
Running from 5 to 9 p.m., this free evening festival gathers more than 250 vehicles spanning vintage classics, muscular American favorites, customized imports, and machines that look as though their owners polished them with cotton swabs.
Children do not need to know a carburetor from a catalytic converter to enjoy choosing the wildest paint job or deciding which car they would drive home. Visitors can also cast a vote for the People’s Choice Award before the winners are announced near the end of the night.
The automotive display is only half the draw. More than 20 food trucks line Victoria Street with a wide range of dinner and dessert choices, while vendors add another browsing opportunity.
Live music begins at 5:30 p.m., with dance tunes followed by classic surf sounds that fit surprisingly well beside the gleaming cars. Admission costs nothing, although food and drinks are purchased separately.
The action centers around Town Square near 1 West High Street, with flat paved streets that are manageable for strollers. Coming early gives families better light for seeing vehicle details and more time before the biggest crowds settle in.
Stay through sunset, though, and the headlights, music, and reflections across the chrome give the show an entirely different personality.
3. Plowing Match at Howell Living History Farm
Modern farm equipment sits out this competition. At Howell Living History Farm, the fields are worked by powerful draft horses guided by teamsters who know how to keep a plow moving straight through stubborn soil.
The farm’s 43rd annual Plowing Match takes place Saturday, September 5, from 10 a.m. to 4 p.m., offering families a close look at an agricultural skill that once shaped everyday life across New Jersey. Admission and parking are free.
Competitors enter divisions suited to different experience levels, from novices learning the craft to veteran plowmen who make controlling a heavy team look almost effortless. The challenge is not simply reaching the end of the field.
Judges consider the straightness, depth, neatness, and overall quality of each furrow. Exhibition hitches, obstacle driving, and other horse-powered demonstrations add variety between the competitive rounds.
What makes the day especially rewarding for children is that this is real farm work rather than a costumed performance created solely for visitors. The newly turned ground begins another growing cycle for crops such as wheat, rye, barley, and spelt.
Families can watch, ask questions, and leave with a much clearer idea of how food production worked before tractors took over. Howell Farm sits at 70 Woodens Lane in Hopewell Township.
Wear closed-toe shoes that can survive dust or mud, bring water, and allow time to explore the surrounding farm after the match.
4. Cape May County Park and Zoo
A family outing involving lions, giraffes, zebras, and monkeys would normally come with a noticeable ticket total. Cape May County Park and Zoo skips that part entirely.
Admission and parking are free, making this 85-acre attraction in Cape May Court House one of the easiest full-day bargains in the state. More than 550 animals representing over 250 species live here, from familiar barnyard residents to big cats and towering African mammals.
The winding, tree-shaded layout gives children frequent opportunities to spot something new around the next bend without turning the visit into a forced march. September is particularly pleasant because the worst summer humidity is usually fading while the zoo remains open daily from 10 a.m. to 4:30 p.m.
Exhibits begin closing shortly before the gates, so an early arrival leaves enough time to wander at a child-friendly pace. The surrounding county park makes the trip stretch well beyond the animal habitats.
Families can use playgrounds, explore walking trails, or spread lunch across one of the picnic tables. Concessions and certain extras cost money, but bringing food makes a nearly cash-free day completely practical.
A wagon or stroller is useful for younger children because the property covers considerable ground. Donations help support the zoo and are welcomed, though never required for entry.
With free parking right beside the attraction, families can spend their budget on absolutely nothing—or perhaps surrender to one strategically timed ice cream.
5. New Jersey State Museum
When September rain wipes out the playground plan, Trenton has a backup that does not feel like a consolation prize. The New Jersey State Museum brings fine art, fossils, archaeology, cultural history, and natural science together under one roof, and general admission to its main galleries is free.
That broad collection solves a familiar family problem: children rarely agree on what counts as interesting. One can inspect prehistoric creatures while another studies Native American artifacts or brightly colored artwork, all without requiring a second destination.
The natural history galleries are usually the quickest route to winning over younger visitors. Fossils, minerals, animal specimens, and displays about the state’s changing landscape turn textbook subjects into things children can examine at close range.
Elsewhere, archaeological objects reveal how people lived in this region long before highways and shopping centers covered the map. The museum is generally open Tuesday through Sunday from 9 a.m. to 4:45 p.m., with galleries beginning to close around 4:30.
It is closed Mondays and state holidays. Allow at least two hours rather than treating it as a quick walk-through; the range of exhibits makes the building larger in practice than it appears from outside.
Weekend visitors can often use nearby state lots or street spaces without paying, while weekday parking requires more planning. The planetarium has a separate admission charge, but families can skip it and still enjoy a substantial museum visit for free.
6. Trailside Nature and Science Center
A live snake behind glass has a reliable way of pulling children across a room faster than any educational sign ever could. At Trailside Nature and Science Center, small animals, interactive exhibits, and hands-on discoveries introduce young visitors to the wildlife living throughout New Jersey.
The center occupies three levels inside Watchung Reservation in Mountainside, and admission is free. Exhibits explore forests, wetlands, geology, plants, and local animal life without overwhelming children with walls of dense text.
Turtles, fish, snakes, and other residents provide the immediate excitement, while the Discovery Room and children’s library give families quieter places to slow down. Trailside works especially well because the lesson does not end at the exit.
Outside, the Sensory Trail invites children to notice textures, sounds, and scents, while the Solar System Walk turns a stroll into a journey through space. The wider Watchung Reservation offers miles of trails if everyone still has energy after exploring the building.
A short woodland walk in mid-September may reveal the earliest hints of fall color without requiring a difficult hike. The center is generally open Tuesday through Sunday from 10 a.m. to 4 p.m., although families should confirm the day’s schedule before leaving.
Parking is available nearby, and the paved approaches are manageable with a stroller. Pack water and a small snack, then combine the indoor exhibits with outdoor exploration for an afternoon that feels much bigger than a free museum stop.
7. Trenton RiverFest
Free canoe and boat rides give Trenton RiverFest an immediate advantage over the average street festival. Held around Trenton Thunder Ballpark on Saturday, September 12, from 11 a.m. to 4 p.m., this celebration invites families to experience the Delaware River rather than merely admire it from the shore.
Admission and parking are free, and the schedule blends outdoor activity with enough dry-land entertainment to satisfy children who prefer not to climb aboard anything that floats. Local organizations lead educational games and exhibits focused on the river, its wildlife, and the communities connected to it.
Fly-fishing demonstrations show how a skilled cast can send a line dancing across the water, while canoe and boat outings let visitors see the waterfront from a fresh angle. Howell Living History Farm contributes hayrides, creating the unusual possibility of riding both a wagon and a boat during the same afternoon.
Live music provides a soundtrack around the ballpark, and food vendors offer Jersey-friendly favorites along with other snacks and meals for purchase. Families trying to keep the day completely free can bring their own food and focus on the included activities.
Comfortable shoes and clothing that can tolerate a splash are wise choices, especially for children determined to get as close to the river as possible. Arriving early may also improve your chances of joining popular activities before lines grow longer.
8. All About Downtown Street Fair in Jersey City
More than 300 vendors spread across Newark Avenue during this giant Jersey City celebration, creating several blocks where children can follow music, food aromas, and colorful displays without worrying about cars.
The All About Downtown Street Fair returns Saturday, September 19, from noon to 8 p.m., filling the stretch between Grove and Coles streets with artists, independent businesses, performers, and community groups.
Entry is free, and the sheer scale makes aimless wandering part of the attraction. Families can browse handmade art and accessories, watch demonstrations, and sample the mix of cultures that gives Downtown Jersey City its distinct personality.
Food is available for purchase from vendors representing cuisines from around the world, but no one is required to buy anything to enjoy the performances. Local musicians play throughout the afternoon, while rides and face painting give younger visitors their own reasons to keep moving down the avenue.
Those extras may involve fees, so parents can set expectations before reaching the first brightly colored attraction. Public transportation is the smartest approach for many families.
The Grove Street PATH station places visitors near the center of the action, avoiding the hunt for scarce downtown parking and making the train ride part of the adventure. Bring a refillable water bottle and use a stroller for little ones who may fade before the evening ends.
With eight hours of programming, there is no pressure to see everything—pick a direction and let the street decide what happens next.
9. Roaring Twenties Jazz Party at East Jersey Old Town Village
Flapper dresses, straw boaters, antique automobiles, and a swinging orchestra send Piscataway back a century during the Roaring Twenties Jazz Party.
The free event takes over East Jersey Old Town Village on Sunday, September 27, from 11 a.m. to 5 p.m., proving that a history lesson becomes much more memorable when it includes dancing.
Michael Arenella and His Dreamland Orchestra supply the era’s live soundtrack, honoring the legacy of influential New Jersey musician and composer James P. Johnson.
Between performances, a vintage DJ keeps early-20th-century recordings spinning. Families do not have to remain spectators.
Dance lessons introduce beginners to period steps, giving children permission to jump in even if their interpretation of the Charleston is mostly elbows. Costumed historical interpreters and theatrical performances add context to the music, while vintage cars tend to stop young vehicle fans in their tracks.
The village itself strengthens the time-travel effect with relocated and reconstructed historic buildings gathered along its grounds. Admission and on-site parking are free.
A complimentary shuttle from the New Brunswick train station also makes the party accessible without a car. Food and drinks are sold by vendors, though packing a simple lunch can keep the outing budget at zero.
Period clothing is not required, but families who enjoy dressing up have an unusually good excuse. Bring a blanket or folding chairs for music breaks, then leave enough time to wander among the buildings and cars before the final performance.
10. Princeton Porchfest
Instead of gathering every performer on one crowded stage, Princeton lends its porches, yards, and sidewalks to musicians for an afternoon. Porchfest takes place Saturday, September 26, from noon to 6 p.m., turning a walk through town into a choose-your-own concert.
Participation is free, and acts rotate across multiple locations throughout the day. Families can hear a few songs, move when younger listeners get restless, and find an entirely different sound around the next corner.
That freedom makes the event much easier with children than a traditional seated concert where every whispered snack request feels amplified. The lineup typically crosses genres and generations, giving parents a chance to introduce kids to unfamiliar music without committing to a full performance.
Local and student musicians help create a friendly, low-pressure mood, and audiences often settle on lawns, curbs, and folding chairs. The Arts Council of Princeton serves as a useful starting point and hub for the day.
Pick up or save the performance schedule, but resist planning every minute; half the fun comes from hearing something interesting in the distance and following it. Parking near the busiest blocks can become difficult, so arrive early or use a public lot and expect to walk.
A lightweight chair or blanket, refillable water bottles, and portable snacks are the essential equipment. Keep sidewalks and driveways clear, supervise children around residential streets, and treat each borrowed porch with the same care you would show a neighbor’s front yard.
11. Downtown Toms River Comfort Food Festival
Macaroni and cheese has enough variations to become an entire afternoon’s project, and Downtown Toms River gladly accepts the challenge.
The Comfort Food Festival fills Washington Street on Saturday, September 19, from noon to 6 p.m., bringing together food vendors, craftspeople, local businesses, children’s activities, and live entertainment.
Admission is free, although the dishes that give the festival its name are sold separately. Families can still enjoy the music, browse the booths, and explore downtown without spending anything.
Those planning to eat should arrive hungry and consider sharing portions. Comfort food tends to arrive rich, hearty, and generous, so splitting dishes allows everyone to try more without reaching complete casserole exhaustion after the first stop.
The selection commonly extends well beyond mac and cheese, with vendors serving familiar favorites and creative twists designed for cool-weather appetites.
Merchandise booths and open downtown shops provide a useful break between tastings, while scheduled activities help keep children interested when adults want another slow look at the menu boards.
Washington Street is flat and stroller-friendly, though the central blocks become crowded during the busiest afternoon hours. Free downtown parking is available during the event, but earlier arrivals generally have a simpler walk from the car.
Bring water, napkins, and perhaps a container for leftovers if you plan to purchase food. Even families carrying a packed lunch can soak up the festival scene and save their budget for one carefully chosen dessert.
12. Cohanzick Zoo
New Jersey’s oldest zoo also happens to be one of its most affordable: tickets have never entered the equation. Cohanzick Zoo welcomes visitors free of charge inside Bridgeton City Park, where more than 100 animals representing roughly 45 species live among shaded paths and manageable exhibits.
Its smaller scale is a strength for families with young children. Visitors can see the collection without covering miles of ground, and there is less pressure to race from habitat to habitat before closing.
Bengal tigers are the headline residents, but cougars, leopards, bears, monkeys, birds, and smaller animals make the route much more than a single-exhibit trip.
Many residents came to the zoo because they were rescued, injured, or unable to survive in the wild, giving parents a natural opening to talk about conservation and responsible animal care.
During the warmer season, the zoo is generally open daily from 9 a.m. to 5 p.m. Parking is free, and the pathways are accessible to wheelchairs and strollers.
Outside food is permitted, while picnic areas in the surrounding grove make lunch easy and inexpensive. Arriving in the morning usually means cooler walking weather and animals that may be more active before the afternoon heat settles in.
Because admission costs nothing, families can follow the children’s pace rather than feeling obligated to extract an entire day’s value from a ticket. A donation is appreciated, but the visit remains genuinely free.
13. Wind and Sea Festival at Bayshore Waterfront Park
Shoes may not stay dry at this one. The Wind and Sea Festival brings kayaking, fishing, crabbing, seining, kite flying, sandcastle building, and other coastal activities to Bayshore Waterfront Park in Port Monmouth on Saturday, September 19.
Running from 11 a.m. to 5 p.m., the event gives families a hands-on introduction to the Raritan Bay shoreline with free admission and parking. Most activities are free, although a few may carry an additional fee.
Naturalists and activity leaders help children examine the coastal environment rather than treating the beach as nothing more than a place for towels and sand toys. Seining can reveal small creatures living close to shore, while crabbing and fishing teach the patience required to catch anything that has its own plans.
Kayaking offers an especially memorable way to see the waterfront, though participation may depend on age, conditions, and availability. Children who prefer land can build sandcastles, launch kites, create crafts, or watch demonstrations.
Festival parking is available at the Belford Ferry Terminal at 10 Harbor Way, with a free shuttle carrying visitors to and from the park. That arrangement is worth remembering before automatically driving toward the waterfront entrance.
Dress everyone in quick-drying layers, bring sun protection, and pack spare socks for the ride home. Food vendors will be present, but a picnic keeps costs down and lets the family take a break whenever hunger interrupts the next coastal experiment.
14. Harvest Home Festival at Historic Longstreet Farm
Climb out of the car in Holmdel, and the calendar seems to lose more than a century. Historic Longstreet Farm recreates agricultural life in the 1890s, complete with working fields, traditional tools, heritage animals, and costumed interpreters carrying out the tasks that once filled every season.
Its Harvest Home Festival on Sunday, September 27, from 11 a.m. to 5 p.m. turns the farm’s autumn traditions into an old-fashioned country fair. Admission and parking are free.
Visitors can watch demonstrations, enjoy live entertainment, and join games that existed long before tablets and video consoles took charge of family downtime.
Rather than placing history behind glass, the farm lets children hear livestock, see equipment in use, and understand how much physical work went into producing food and maintaining a household.
The festival setting adds friendly competition and playful activities without losing the farm’s authentic character. Families should allow time to explore beyond the main entertainment area, since the barns, farmhouse surroundings, and resident animals are essential parts of the experience.
Longstreet Farm is located within Holmdel Park at 44 Longstreet Road, so the day can easily include a picnic or walk elsewhere in the park. Wear sturdy shoes suited to grass and uneven farm surfaces, and bring cash only if you expect to purchase refreshments or extras.
By late afternoon, the children may be dusty, tired, and newly grateful that household chores no longer involve doing everything by hand.