Slick City Ontario
Ontario Mills, Ontario, CA
Ontario Mills indoor slide park with fast dry slides, a junior zone for little kids, parties, and timed all-weather sessions.
Editorial notes
What stands out
Best for kids who want a big-energy indoor outing built around slides, not a quiet toddler playroom.
Good fit
- Active preschoolers and elementary-age kids
- Families who want a weather-proof high-energy outing
- Birthday groups that want a structured session format
Consider another option if
- Families looking for a calm toddler-first play cafe
- Caregivers who prefer a drop-in venue with long, unstructured stays
Know Before You Go
- Timing
- Visits run on timed sessions rather than unlimited open play.
- Supervision model
- Caregiver supervised
What to Expect
For kids
- Preschoolers
- Big kids
- Mixed ages
- Slides
- Soft play
- Open play
For caregivers
- Caregiver supervised
- Visit type
- timed attraction visit
Read more about this location
Slick City Ontario is a high-energy indoor slide park inside Ontario Mills. The focus here is fast dry slides and active movement rather than a traditional padded playground, so it is a stronger fit for families with thrill-seeking preschoolers and older kids than for toddlers who need a calm soft-play room. A smaller Junior Jungle area gives younger visitors their own option, while the main floor is best approached like a timed active outing with socks, waivers, and session-style admission.
Hours & Admission
Posted hours
Check posted weekly hours
View full weekly hours
| Monday | 1:00 PM – 8:00 PM |
|---|---|
| Tuesday | 1:00 PM – 8:00 PM |
| Wednesday | 1:00 PM – 8:00 PM |
| Thursday | 1:00 PM – 8:00 PM |
| Friday | 11:00 AM – 10:00 PM |
| Saturday | 10:00 AM – 10:00 PM |
| Sunday | 11:00 AM – 8:00 PM |
Based on posted weekly hours. Holidays, private events, seasonal schedules, and special closures may differ.
Admission
| Visitor | Price |
|---|---|
| 90-minute action ticket | $25.99 |
| 120-minute action ticket | $30.99 |
| Junior ticket for ages 3 and under | $13.99 |
| Admission | CitySocks are required and sold separately for $4.99 if needed |
Admission details can change. Confirm current fees before visiting.
Birthday Parties
Starting at $339.90
Official party packages are sold in structured 120-minute formats.
Accessibility
Summary
Socks and waiver-based entry are part of the standard visit process. Slick City also advertises sensory-hour programming, though availability may vary by location and schedule.
Location
4655 Mills Cir
Ontario, CA, 91764
Other options nearby
LOL Kids Club Ontario
Large Ontario indoor playground with all-day play, slides, trampolines, a ball pit, food service, and birthday rooms.
Kids Empire Ontario
Ontario indoor playground with all-day re-entry, giant climbing structures, toddler areas, and streamlined birthday packages.
Source reviewedWe Rock the Spectrum Kid’s Gym - Redlands
Inclusive Redlands sensory gym with open play, memberships, parties, and movement-based equipment for children of all abilities.
Sources & Updates
Source-checked Apr 9, 2026 against 4 public sources
View source and update details
- Last check on record
- Apr 9, 2026
- Sources reviewed
- 4 public sources
Public sources
- Official location pageslickcity.com
Checked: address, features, contact
- Official pricing pageslickcity.com
Checked: session pricing, sock policy
- Official calendarslickcity.com
Checked: hours
- Official parties pageslickcity.com
Checked: party packages