Private use of the KidStrong center during your party
Birthday parties that rock.
Kids' Birthday Parties in Thornwood, NY
A private, coach-led KidStrong party filled with action, confidence-building games, and unforgettable birthday memories.
KidStrong Thornwood
Birthday parties are hosted at KidStrong Thornwood, 996 Broadway in Thornwood, NY. Call us at +1 914-228-7025 to check party dates and availability.
996 BroadwayThornwood, NYWhy Thornwood, NY families love us
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MARGARITA M.
"my first day there was perfect, my son loved it, coaches were very friendly, patience and so nice, I really love it"
August 30, 2026
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LAKSHMI A.
"My little3 year old grandson absolutely loves this class! The environment is fun and safe, and I have seen such a boost in Arin's confidence and physical skills. The coaches are amazing_ patient, encouraging, and knowledgeable. Highly recommend this place for kids of all ages."
August 1, 2026
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IRIS M.
"It’s my sons first day everyone was nice to him making him feel comfortable we was able to get in early before the class started so my son could have one on one with the coach also just run around and feel the place out he loved it we are so excited and looking forward to our upcoming classes it’s more then just a baby ..."
July 30, 2026
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DIANA D.
"Professional staff, clean gym, no synthetic perfume smells like in other gym. Very healthy friendly environment for kids to get strong and confident! Highly recommend especially for those whose kids do not like sports"
July 24, 2026
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AMANDA G.
"KidStrong Thornwood made Jonathan and I feel absolutely welcomed. They reminded me to let loose and just have fun with my baby. I love that the program is backed by science and physical therapists. I saw growth in my son’s legs after one lesson! Thank you staff and Coach Ru!"
July 15, 2026
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MADISON L.
"The coaches and staff were great! Super accommodating and helpful with my twin boys."
July 3, 2026
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KR
"The team and coaches are very attentive. They make sure they explain to parents the essence of each activity and to encourage support from parents."
July 2, 2026
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THE T.
"Absolutely best experience with my 3 year old son!!! Highly recommend!! Coach is an exceptional and my son loves him!!!"
June 29, 2026
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JORDAN F.
"The atmosphere is highly encouraging to the kids. The leadership provided by the coaches to allow the kids to learn and build confidence has exceeded my expectations. My daughter has grown immensely in just a few classes. She is stronger, faster, smarter and more vocal. This class is great !"
June 28, 2026
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JENNIFER O.
"The staff at KidStrong Thornwood is always professional and kind. My girls are 7 and 5 and they look forward to going to class every week."
June 28, 2026
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JOHN S.
"My daughter loves this place. It’s fun, and builds on children’s grit, attitude and overall health."
June 22, 2026
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MARY D.
"My daughter loves going to KidStrong & so do I. We always enjoy every class we attend. She is learning not just gymnastics, but education & life skills. I definitely recommend KidStrong to all parents."
June 6, 2026
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JON L.
"KidStrong Thornwood stands out because it combines physical activity, confidence building, and social development in a fun and structured way. The kids had a great time and really enjoyed the experience."
May 25, 2026
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SOFIA R.
"Comfortable space, great coaches (Mike and all), and fun activities that are confidence building. My timid 3 y/o loves it!"
May 22, 2026
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MARIA S.
"I can’t say enough great things about KidStrong. My daughter is 2 (almost 3), and I’ve seen such an amazing I’m so grateful we found KidStrong. It’s been such a positive experience for our family, and I highly recommend it to any parent looking for a supportive and enriching environment for their child. KidStrong. M..."
April 27, 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 Thornwood.
Add-ons available at KidStrong Thornwood. Call+1 914-228-7025 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 Thornwood at +1 914-228-7025 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 Thornwood at +1 914-228-7025 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 Thornwood 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 Thornwood at +1 914-228-7025.
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 Thornwood at +1 914-228-7025 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 Thornwood at +1 914-228-7025. 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 Thornwood at +1 914-228-7025 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 Thornwood on the perks of becoming a member.
Do you offer any add-on packages?
After booking your party, KidStrong Thornwood 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 Thornwood at +1 914-228-7025 for available add-ons and pricing.