Private use of the KidStrong center during your party
Birthday parties that rock.
Kids' Birthday Parties in Watchung, NJ
A private, coach-led KidStrong party filled with action, confidence-building games, and unforgettable birthday memories.
KidStrong Watchung
Birthday parties are hosted at KidStrong Watchung, 1701 U.S. 22 #27 in Watchung, NJ. Call us at +1 908-739-6163 to check party dates and availability.
1701 U.S. 22 #27Watchung, NJWhy Watchung, NJ families love us
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SARAH L.
"Absolutely love this place! Our son loves 2-3 year old classes and coaches. He is learning so much every week and building so much confidence."
September 26, 2026
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MARIA L.
"My son has shown so much improvement in confidence in only just a few classes. - I caught him saying “I am strong, I am brave” (the kid strong motto) when he was nervous. He is eagerly asking me every week when he will become alpha. Can’t wait to see what more is in store ! We love kid strong!"
August 17, 2026
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PHILOMENE D.
"My son truly enjoys being a part of KidStrong. I greatly appreciate the patience and dedication the coaches consistently demonstrate while working with the students. Since joining the program, KidStrong has positively contributed to addressing some of my son’s behavioral challenges. His teachers have also noticed and comm..."
August 9, 2026
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X Z.
"Our son loves his coach Chino and we could not be happier that we found place he truly enjoys. Taking to consideration our son is speech delay and has low muscle tone the coaches are nothing but super helpful, encouraging and supportive."
July 13, 2026
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NINA C.
"My son has been coming to Kidstrong for almost 7 months and he is so much stronger and more confident since he started here. I have seen him do more than I ever realized he was capable of because the class structure and coaches create an environment where it's safe to keep trying. The coaches are friendly, encouraging and ..."
July 6, 2026
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CLAIRE W.
"This program is absolutely wonderful! The coaches are incredibly encouraging and patient with the kids, and my child looks forward to every single Saturday class with so much excitement！"
July 6, 2026
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SH
"My 7-year-old kids really enjoy these classes. The weekly sessions are always conducted on time, and they love the variety of activities offered. The only downside is that it takes a bit of time to learn how to use the app for booking makeup classes."
June 30, 2026
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JENNIFER M.
"I wanted my son to get more active and lay off the screen time so I enrolled him in a class at KidStrong for his age group. He LOVES his class. He was just promoted to the next level and he was so happy. The coaches are terrific here and based on what I’ve observed, they genuinely care about the kids and know all their na..."
June 28, 2026
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ADRIANA P.
"Our trail class went so well! The space was clean and the coaches were nice and energetic! The curriculum kept my 10 month old interested the whole class."
June 25, 2026
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DAWN P.
"We had an absolutely wonderful experience at KidStrong. My son has special needs and limited speech, and from the moment we arrived, the entire team made us feel welcomed, supported, and included. The class had about 12 children ages 5–7, but the staff was incredibly attentive and accommodating. Elliot, the manager, was..."
June 23, 2026
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NICOLE T.
"This place is amazing. My child was really scared at first and they could tell that he was scared and that I was feeling defeated. They stepped in right away and helped me feel at ease while making sure MJ warmed up to the class. By the end of the class he was more comfortable with the coaches and the space. We will be comi..."
June 14, 2026
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E F.
"Great activity for all kids , especially those that aren't into team sports but want to be active."
June 4, 2026
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KATIE U.
"We love Coach LJ! He is the motivation for our some coming to ever class. His positive reinforcement & positive approach with students is exceptional. Coach Benji is a new addition & he is wonderful! We love the KidStrong Watchung Team!"
May 17, 2026
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STEPHANIE L.
"The coaches were very welcoming and nice. My daughter walked right onto the mat with them and immediately wanted to learn with them. The class was paced well, held her attention and she had so much fun."
May 16, 2026
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NAMRATA C.
"Took my reluctant 7 year old for a trial class and she came out smiling and willing to go back for more. That says a lot. The program seems very well designed."
May 11, 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 Watchung.
Add-ons available at KidStrong Watchung. Call+1 908-739-6163 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 Watchung at +1 908-739-6163 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 Watchung at +1 908-739-6163 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 Watchung 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 Watchung at +1 908-739-6163.
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 Watchung at +1 908-739-6163 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 Watchung at +1 908-739-6163. 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 Watchung at +1 908-739-6163 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 Watchung on the perks of becoming a member.
Do you offer any add-on packages?
After booking your party, KidStrong Watchung 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 Watchung at +1 908-739-6163 for available add-ons and pricing.