Things To Do In Ontario, California: 10 Best Attractions

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Ontario is not a city where you need to chase a long checklist of landmarks.

Its best attractions fall into two useful clusters: Downtown Ontario for local history, art, public space, and events, and the east side for shopping, sports, indoor entertainment, and Cucamonga-Guasti Regional Park.

For a first visit, the strongest choices are a game at ONT Field or an event at Toyota Arena, Ontario Mills, Cucamonga-Guasti Regional Park, the Ontario Museum of History & Art, and the neighboring Chaffey Community Museum of Art.

Families and groups can add iFLY or Topgolf, while Ontario Town Square is an easy free stop when downtown events are running.

Things to Do in Ontario, California

This guide is current for August 2026. Three details matter right now. Ontario has a brand-new Minor League Baseball team and ballpark.

The Ontario Museum of History & Art is open during a North Wing renovation that is expected to continue into spring 2027.

At Cucamonga-Guasti Regional Park, the splash pad is operating, but the swimming pool is closed until further notice.

Ontario attractions at a glance

Attraction	Best for	Current cost pattern	Good visit length
ONT Field and Ontario Tower Buzzers	Baseball, families, evening entertainment	Ticketed; parking is $15 per vehicle	3-4 hours
Ontario Mills	Shopping, food, movies, hot or rainy days	Free to enter	2-5 hours
Toyota Arena	Hockey, concerts, family shows	Event ticket required	2-4 hours
Cucamonga-Guasti Regional Park	Fishing, picnics, splash pad, outdoor time	$10 weekday vehicle entry; $15 weekends; $20 holidays	2-5 hours
Ontario Museum of History & Art	Local history, free indoor stop	Free	1-2 hours
Chaffey Community Museum of Art	Regional art, free indoor stop	Free	45-90 minutes
Ontario Town Square and Euclid Avenue	Downtown walk, events, quick stop	Free	30-90 minutes
iFLY Ontario	Indoor adventure	Paid; booking prices vary	1.5-2 hours
Topgolf Ontario	Groups, casual competition, evenings	Paid by bay/time	1-3 hours
Ontario Improv	Comedy and date night	Ticketed	2-3 hours

The visit lengths above are planning estimates, not official time limits.

1. See the Ontario Tower Buzzers at ONT Field

The biggest change to Ontario's attraction mix in 2026 is ONT Field, the new home of the Ontario Tower Buzzers.

The team is the Single-A affiliate of the Los Angeles Dodgers, giving the city professional baseball again for the first time in decades.

The ballpark is worth considering even if Minor League Baseball was not originally part of your trip.

The setting is designed as a full evening outing rather than just a row of seats around a field, with food areas, lawn seating, family spaces, and an aviation theme tied to Ontario's airport identity.

The 2026 season runs into early September, so late-summer visitors still have home dates to choose from.

Parking is currently $15 per vehicle. Gates open one hour before first pitch, and parking lots open two hours before the game.

If you are traveling with a toddler, children age 3 and under do not need a ticket as long as they do not occupy a seat.

check the Tower Buzzers schedule before choosing between ONT Field and Toyota Arena.

Both are event-dependent, so neither should be treated like a walk-in attraction.

2. Spend a few hours at Ontario Mills

Ontario Mills is the easiest all-purpose stop in the city.

It has more than 200 stores in a climate-controlled indoor center, but the real advantage for visitors is that you do not have to treat it as a shopping-only destination.

The property also includes dining, a large AMC theater, Ontario Improv, and other entertainment.

That makes it especially useful on a 100-degree summer afternoon or a rare rainy day when an outdoor plan is less appealing.

It is also close to Toyota Arena and iFLY, so you can pair several activities without crossing the city repeatedly.

Regular center hours are currently 10 a.m. to 8 p.m. Monday through Thursday, 10 a.m. to 9 p.m. Friday and Saturday, and 11 a.m. to 8 p.m. Sunday.

Individual businesses may keep different hours.

do not budget your entire day here unless shopping is a main goal.

Two or three hours is enough for most visitors who are using the mall as one part of a larger Ontario itinerary.

3. Check the calendar at Toyota Arena

Toyota Arena is one of Ontario's main ticketed entertainment venues.

Its calendar covers concerts, family shows, and sporting events, and the city lists it as home to the Ontario Reign hockey team and Empire Strykers arena soccer team.

This is a calendar-first attraction. The building itself is not the reason to visit; the event is.

On a good date, however, it can be the best evening in town and pairs easily with dinner or shopping around Ontario Mills.

if you are deciding between the arena and ONT Field, use weather and schedule as the tie-breakers.

Baseball gives you an outdoor summer evening, while the arena is the safer choice when heat, rain, or air quality makes outdoor plans less appealing.

4. Get outside at Cucamonga-Guasti Regional Park

Cucamonga-Guasti Regional Park is Ontario's strongest outdoor attraction for visitors who want more than a neighborhood park.

The county park has two fishing lakes, picnic areas, a playground, a splash pad, and space for biking and relaxing near the water.

Current vehicle admission is $10 Monday through Friday, $15 on weekends, and $20 on holidays. Pedestrian admission is $3 per person.

Fishing requires a separate park permit, and anglers also need the appropriate California state fishing license.

The park's swimming pool is closed until further notice, so older articles that describe a pool-and-water-slide day are out of date.

The splash pad remains part of current summer programming.

In summer 2026, the park is operating daily from 7:30 a.m. to 8 p.m. Hours and water features can change seasonally, so check the county park page before making the park the centerpiece of your day.

if you only want a short outdoor stop, Town Square is easier. Choose Guasti when you actually want to stay outside for a couple of hours.

5. Visit the Ontario Museum of History & Art

The Ontario Museum of History & Art is the best free stop for understanding how the city developed.

It occupies Ontario's former City Hall and covers local and regional history alongside art exhibitions.

Admission is free. Current public hours are noon to 4 p.m. Thursday and Friday and 11 a.m. to 5 p.m. Saturday and Sunday.

A North Wing gallery renovation began in July 2026 and is expected to continue through spring 2027. The museum has not closed for the project.

Its permanent exhibitions "Built on Water" and "Gem of the Foothills" remain open while the work continues.

That distinction matters because a visitor who sees "museum renovation" in a search result might assume the whole building is unavailable.

pair this museum with the Chaffey Community Museum of Art rather than making two separate downtown trips.

6. Walk across to the Chaffey Community Museum of Art

The Chaffey Community Museum of Art sits only a short walk from the Ontario Museum, making the two museums one of the easiest pairings in the city.

CCMA focuses on art from the Inland Southern California region.

Its permanent collection shares space with rotating exhibitions, so repeat visitors can see something different over time.

Admission is always free. Current hours are Thursday through Sunday from noon to 4 p.m.

do the Ontario Museum first if local history matters more to you, then cross over to CCMA.

If you only have an hour and primarily want art, reverse the order.

7. Walk Ontario Town Square and a stretch of Euclid Avenue

Ontario Town Square is not a major destination on the scale of a famous urban park, but it works well as the center of a downtown visit.

The square has an amphitheater, clock tower, rose garden, lawn, history wall, picnic tables, and a small play area for young children.

Its value rises sharply when the city has programmed an event.

Ontario uses the square for concerts, family programs, seasonal celebrations, and other public gatherings.

Summer concert programming has been free in 2026, and the city regularly updates its special-event calendar.

From the square, spend a little time along historic Euclid Avenue rather than immediately getting back in the car.

The corridor gives you a better sense of Ontario's older civic center than the freeway-oriented areas around the airport and malls.

Town Square works best as connective tissue between the museums, a meal, and another downtown stop. By itself, it is usually a short visit.

8. Try indoor skydiving at iFLY Ontario

iFLY is the best fit if your group wants one memorable paid activity rather than another museum or shopping stop.

The Ontario location uses a vertical wind tunnel to create an indoor flying experience, with instruction before the flight.

The venue markets the experience to first-time flyers, children, groups, and parties.

Prices depend on the package and date, so it is better to check the live booking page than rely on a fixed price from an older travel article.

Wear lace-up sneakers and comfortable clothes, and arrive early enough for the preparation session.

reserve in advance on weekends. Because the activity is indoors, it is one of the city's strongest hot-weather backups.

9. Play a bay at Topgolf Ontario

Topgolf is a good compromise when some people in your group care about golf and others do not.

The Ontario venue has more than 100 all-weather hitting bays, game-based shot tracking, food, and a sports-bar setup.

Current posted hours run late: 9 a.m. to 1 a.m. Monday through Friday and 8 a.m. to 1 a.m. on weekends.

Pricing is by bay and time, so the per-person cost gets easier to justify when a group splits a bay.

Guests under 16 must be supervised by someone 21 or older at all times. After 9 p.m., anyone under 18 needs that supervision.

if nobody in your group wants to swing a club, choose Ontario Improv or an arena event instead. Topgolf is social, but the game still matters.

10. See a comedy show at Ontario Improv

Ontario Improv is inside the Ontario Mills complex and gives adults a straightforward evening option when the sports calendar does not cooperate.

The calendar changes constantly, with touring comedians, open mics, and special shows.

Buy from the official venue calendar rather than using a dated list of performers.

pair the show with Ontario Mills or nearby dinner rather than making a separate cross-city trip.

Best free and low-cost things to do in Ontario

Ontario can be inexpensive if you build the day around downtown instead of ticketed entertainment.

The best no-admission choices are:

Ontario Museum of History & Art
Chaffey Community Museum of Art
Ontario Town Square
A walk along Euclid Avenue
Ontario Mills, if you are browsing rather than shopping

Cucamonga-Guasti Regional Park is the strongest low-cost outdoor option for a carload on a weekday, although fishing and other activities add separate fees.

Best things to do with kids

For families, the choice depends on how active the day should be.

Choose Cucamonga-Guasti Regional Park for outdoor time and the splash pad.

Choose ONT Field for an evening that combines baseball with family spaces. Choose iFLY for a single paid experience that becomes the main event.

Choose Ontario Mills when you need air conditioning, food choices, a movie, and enough flexibility to change plans without driving somewhere else.

Younger children can also use the small tot lot at Ontario Town Square, but the square is better treated as part of a downtown outing than as a stand-alone playground destination.

A one-day Ontario itinerary that minimizes driving

Ontario is spread out enough that random attraction-hopping wastes time. A simple one-day plan is to do downtown first, then move east.

Morning: Start at the Ontario Museum of History & Art when it opens, then visit the Chaffey Community Museum of Art.

Walk to Ontario Town Square and spend a little time along Euclid Avenue.

Lunch: Eat downtown or move east toward the airport and Ontario Mills area.

Afternoon: Choose Cucamonga-Guasti Regional Park if the weather is comfortable. If it is very hot, use Ontario Mills, iFLY, or both.

Evening: Pick the calendar winner: a Tower Buzzers game at ONT Field, a concert or sporting event at Toyota Arena, a comedy show at Ontario Improv, or a Topgolf bay.

Trying to fit ONT Field, Toyota Arena, and a long Ontario Mills visit into the same day usually creates a schedule built around parking lots and event start times.

Pick one major evening anchor.

Attractions older Ontario guides can get wrong

Two names still appear on older attraction lists and deserve a current-status check.

Scandia Amusement Park is closed.

The Ontario park shut down in 2019, so do not build a family itinerary around old references to its rides, miniature golf, or arcade.

Graber Olive House needs verification before you go.

It remains an important part of Ontario's history, and its official site says the family is working to bring paused olive production back.

However, the site does not currently publish dependable regular visitor-tour hours.

Treat it as a place to check directly, not a guaranteed walk-in attraction.

The Ontario Convention Center is another name that ranks highly on some attraction pages.

It is useful if you are attending a convention, trade show, or scheduled event, but it is not a sightseeing stop by itself.

The simplest way to choose

If you only want the essentials, use this shortlist:

Best new attraction: ONT Field and an Ontario Tower Buzzers game.
Best all-weather stop: Ontario Mills.
Best event venue: Toyota Arena.
Best outdoor stop: Cucamonga-Guasti Regional Park.
Best free history stop: Ontario Museum of History & Art.
Best free art stop: Chaffey Community Museum of Art.
Best active indoor experience: iFLY Ontario.
Best group activity: Topgolf Ontario.
Best downtown stop: Ontario Town Square and Euclid Avenue.
Best adult evening backup: Ontario Improv.

Ontario makes more sense as a trip when you choose one downtown block, one east-side activity, and one evening event instead of trying to turn every listing into a must-see attraction.

Sources and further reading

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