Private use of the KidStrong center during your party
Birthday parties that rock.
Kids' Birthday Parties in Newmarket, ON
A private, coach-led KidStrong party filled with action, confidence-building games, and unforgettable birthday memories.
KidStrong Newmarket (ON)
Birthday parties are hosted at KidStrong Newmarket (ON), 18170 Yonge St Unit A5 in Newmarket, ON. Call us at +1 289-803-8424 to check party dates and availability.
18170 Yonge St Unit A5Newmarket, ONWhy Newmarket, ON families love us
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CHRISTINE R.
"The BabyStrong Crawling to Walking class is wonderful! Our daughter has been attending since the gym’s opening week, and we look forward to every class. The program is well structured, with activities that change weekly and plenty of time for the little ones to “explore the floor” and enjoy some independent play with ..."
October 1, 2026
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VITO A.
"Trial class went well. It’s nice they have options for no commitment or ongoing membership - choose your adventure! Vince the owner was great to chat with and a nice family man. Will be back"
September 26, 2026
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MATTHEW A.
"Our family had an absolutely wonderful experience at KidStrong Newmarket! Both my son and daughter loved it from the moment they walked through the doors. The environment is energetic, positive, welcoming, and designed to help kids build confidence while having a great time. What impressed me most is that KidStrong is abou..."
September 20, 2026
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SARA P.
"KidStrong is absolutely incredible and has been a total game-changer for our children! From the very first session, we knew we found something truly unique. It is so much more than just a kids' fitness class—it is a complete confidence-building powerhouse. The coaches are the absolute heart of the program. They are high..."
September 20, 2026
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JO P.
"Our two kids, ages 10 and 5, absolutely love KidStrong, and it's become one of the highlights of their week. Since joining, we've seen incredible growth in their strength, endurance, confidence, and willingness to push themselves outside their comfort zones. It's been amazing to watch them grow, not only physically but also..."
September 14, 2026
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MAURICIO M.
"It’s a great program for my son. He’s really enjoying it and looks forward to it every week. Brand new facility. Very clean. Very friendly staff. Classes/programming is continuous."
September 9, 2026
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TAIBOMI S.
"刚开业时儿子来 KidStrong Newmarket 上第一次课的体验就挺好。 第一天刚到的时候他其实非常抗拒，不愿意进去参加课程。我跟他沟通了很久都没用，当时我都快放弃了，想着第一天要不就不上了。这个时候里面的一位 coach 主动走过来，很有耐心地�..."
September 8, 2026
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SHAN S.
"Happened to walk by this place on my way to bulk barn, and had a peek in. I was invited in by the kindest staff and was provided a full breakdown of the class. They are extremely transparent in the program, fees and what to expect. Our first class was awesome and we are excited for more to come. Highly recommend this place ..."
August 27, 2026
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LAUREN B.
"Our 4.5 yr old daughter is already such a huge fan of Kid Strong Newmarket and it’s great strength and confidence building programs! It’s like a gym and mini boot camp all in one and a great place to release energy but also focuses on individual skill building. The coaches are extremely interactive and patient! It is hi..."
August 24, 2026
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HELIA A.
"Highly recommended! If you want to build your kids confidence from an early age consider taking them to kidsstrong"
August 19, 2026
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CI
"A truly engaging and fun way to encourage and build kids character and skills!"
August 16, 2026
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RACHEL J.
"We absolutely love KidStrong for our son! The staff do such an amazing job communicating with the kids, keeping them engaged, and making every class run so smoothly. I especially love the foundation and fundamentals of the program. It’s such a great mix of strength, confidence, coordination, and important life skills. You..."
August 16, 2026
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PATRICIA G.
"It's a positive environment that genuinely helps my daughter get stronger mentally, physically, and emotionally with a truly caring team."
August 16, 2026
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KATIE D.
"Very high energy, very focused on the successfulness of students, very positive space"
August 16, 2026
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VAL A.
"My daughter loves the program and activities. She started on the first day this week - grand opening. Great team and amazing team spirit from the staff and coaches. So far, so good. Well done!"
August 16, 2026
What you get
Everything needed for an epic party.
We handle the movement, games, coaching, setup, and cleanup so families can focus on celebrating.
Book a Birthday Party90-minute private party
Up to 15 kids included
Two KidStrong coaches
One KidStrong T-shirt for birthday child
Food and cake celebration time included
Set-up and clean-up included
90
minute private party
15
kids included
2
KidStrong coaches
Guided fun
70 minutes of guided activities
A KidStrong birthday party is non-stop action, packed with KidStrong-exclusive games and activities guaranteed to create epic memories, with the last 20 minutes dedicated to food and cake.
Book a Birthday PartyPrivate event
The whole facility is yours
Want your kid to be the VIP? We’ve got you covered. With KidStrong Parties, the entire facility is dedicated to your kid’s special day.
Book a Birthday PartyCoach-led
Two amazing coaches
You get not one, but TWO of our KidStrong-certified coaches for the entire duration of your party.
Book a Birthday PartyMake it yours
Party add-ons at KidStrong Newmarket (ON).
Add-ons available at KidStrong Newmarket (ON). Call+1 289-803-8424 to discuss options that can make the day even easier.
Additional Kids
Additional Party Time
KidStrong T-Shirts for Guests
Goody Bags
Additional Coach Support
Food & Beverage Packages (where available)
Paper Products & Party Supplies (where available)
Ready to celebrate?
Book a KidStrong birthday party today.
Private facility. Expert coaches. Epic memories. Let’s make this birthday strong.
Questions Parents Ask
Frequently Asked Questions
Everything you need to know about KidStrong birthday parties.
How many kids can attend the birthday party?
Each party includes up to 15 kids. Additional kids may be added for an additional fee. Call KidStrong Newmarket (ON) at +1 289-803-8424 to check availability and pricing.
How old does my kid need to be to book a party?
KidStrong offers birthday parties for kids aged 1-11. Guests 3 years and younger must have an adult (18 or older) on the floor with them.
What time can I arrive?
Check with KidStrong Newmarket (ON) at +1 289-803-8424 on arrival time.
What am I allowed to bring to the party? What do I need to bring?
Families are welcome to bring food, beverages, cake, decorations, and other celebration items. Contact KidStrong Newmarket (ON) for any location-specific guidelines.
Is gratuity included or should I tip the coaches?
For details on gratuities or any applicable service fees associated with your party, contact KidStrong Newmarket (ON) at +1 289-803-8424.
Does the party host’s child count as a part of the total child count?
Yes, any kid that is on the floor counts towards the party count.
Are waivers required for participation?
Any participant on the floor, 18 and under, must have a signed waiver. When you book your party, we will give you a link where you and your guests can sign the waiver ahead of time.
Do parents need to stay at the party?
If the kids are under 3, a parent needs to be on the floor, for kids older than that, please check with the center on parent policy.
How is my party run? What is the schedule of the party?
Our coaches will check in all guests and ensure that a waiver has been completed. Once checked in, kids can join the coach on the blue floor for explore time. When the majority of the guests arrive (typically 5 minutes after party start time), or when the party parent is ready to begin, the coaches will begin the games on the blue floor. Blue floor games and activities will take about 70 minutes and the remaining party time will be for food/cake.
How far in advance should I book my party?
To ensure you get the date and time of your party, we recommend at least 1 month in advance.
What is the deposit amount?
Check with KidStrong Newmarket (ON) at +1 289-803-8424 for party deposit prices. Deposits are applied to your remaining balance at the end of your party. You can book your party online at any time.
Can I pay my party balance prior to the day of the party?
Yes, you can pay for the party balance ahead of time by contacting KidStrong Newmarket (ON) at +1 289-803-8424. Keep in mind, a final headcount will take place the day of the party and additional kids will be charged the day of the party.
What is the cancellation policy?
All party deposits are NON-REFUNDABLE. Check with KidStrong Newmarket (ON) at +1 289-803-8424 for the full cancellation policy.
Do I have to sign a party agreement?
Yes. All parties require a signed party agreement before the reservation can be confirmed.
Where can I get the waivers?
The link to our waiver form is always easily available on our website. You will also receive a link to share with your guests in your part confirmation email. It is recommended that your guests complete the waiver prior to arrival.
Do I have to be a KidStrong member to host a KidStrong party?
No. Non-members are welcome to host parties at KidStrong. Check with KidStrong Newmarket (ON) on the perks of becoming a member.
Do you offer any add-on packages?
After booking your party, KidStrong Newmarket (ON) will get in touch with you about the optional add-ons available for parties.
What Add-ons are available for a KidStrong Party?
Call KidStrong Newmarket (ON) at +1 289-803-8424 for available add-ons and pricing.