Private use of the KidStrong center during your party
Birthday parties that rock.
Kids' Birthday Parties in Sayville, NY
A private, coach-led KidStrong party filled with action, confidence-building games, and unforgettable birthday memories.
KidStrong Sayville
Birthday parties are hosted at KidStrong Sayville, 5640 Sunrise Hwy in Sayville, NY. Call us at +1 631-849-8238 to check party dates and availability.
5640 Sunrise HwySayville, NYWhy Sayville, NY families love us
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MEGHAN A.
"We absolutely love KidStrong! The coaches do such an amazing job making every class fun, engaging, and confidence-building for the kids. A special shoutout to Coach Candy, Coach Lee, Coach Alex, and Coach Chris — they are all incredible! They bring so much energy, patience, and encouragement to every class and truly make ..."
October 16, 2026
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NICHOLE K.
"Our son has slight ADHD, and listening, focusing, and following directions can be a real challenge for him—especially in a busy environment with so much going on. He doesn’t respond well to any coach, but Coach Derek has somehow found a way to connect with him, earn his trust, and bring out the absolute best in him. He ..."
August 15, 2026
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KENNY M.
"Loved the staff and how it was structured, super welcoming and coaches helped us know what to do and how it runs If she didn’t know how to do something they helped. Enjoyed the whole experience."
July 31, 2026
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MA
"My girls love coming to KidStrong. They enjoy ranking up and seeing their accomplishments.They have alot of fun while getting a nice workout in to keep them active."
July 9, 2026
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PAULA L.
"I took my 16 month old grandson for his first class. We were greeted as soon as we walked in. The class structure was explained and all coaches were enthusiastic and encouraging. He loved it and i am now looking to sign up my other 2 grandchildren. KidStrong did not disappoint😊"
July 9, 2026
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KELLY M.
"The coaches and class was so welcoming especially for my sons first who is 9 months old it was a great time - the facility is super clean also which is a major plus for me. We cannot wait to go back!"
June 25, 2026
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EMMA J.
"My child had his last day of school this week. On his last couple of days, they gave him a piece of paper and told him to write down an important place and person in your life. He chose to write about KidStrong and Coach Destiny! Not mom not dad or his siblings but Coach Destiny. And frankly I couldn’t be more happy he ch..."
June 21, 2026
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ANTHONY S.
"Coach Destiny has been an absolute blessing to our family. Both of my children, Avanna and AJ, absolutely adore her and look forward to every KidStrong class because of the positive energy, encouragement, and genuine care she brings every single time. What sets Coach Destiny apart is her ability to make every child feel se..."
June 21, 2026
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RAQUEL D.
"The staff is extremely friendly and interactive with my kids. They make learning fun, keep the children engaged, and help build confidence while having a great time. My kids love it! ❤️"
June 21, 2026
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NICOLE A.
"KidStrong is an excellent concept! The coaches are interested in identifying each individual child’s areas of opportunity. They are there to motivate and guide the children in their classes to succeed."
June 21, 2026
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LA
"I was very impressed with the positivity of the staff and constant energy level. The cleanliness, and structure was impeccable, over all five ⭐⭐⭐⭐⭐'s! The whole dynamic of Coach John and his staff is very, very impressive!! They do an excellent job relating to the adults and the children. Coach John brings a witty..."
June 19, 2026
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ALEXA F.
"They are the best personable staff! They make me feel at home and a part of something amazing every time I show up with my kids!"
June 18, 2026
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DIANA P.
"Cant express enough how much the Team at kid strong creates such a great experience for the kids. My son is excited every week to go. Coach Destiny along with the other coaches are truly engaging and are creating a fun experience for the kids. I also had my son’s birthday party and everyone was hands on helping in every w..."
June 15, 2026
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LISA L.
"My son Johnny LOVES Kidstrong! Kidstrong has helped him grow and be more confident and strong. All the coaches are great at keeping the energy and excitement up, but Coach Destiny goes above and beyond! She keeps those kids in line! We love Kidstrong!"
June 15, 2026
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DUNIS C.
"My kids have had a wonderful experience. All of the coaches are super friendly, patient, and understanding. They create a positive and supportive environment where the kids feel comfortable, encouraged, and motivated to learn and grow. The coaches truly care about each child and make every session enjoyable. I highly recomm..."
June 13, 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 Sayville.
Add-ons available at KidStrong Sayville. Call+1 631-849-8238 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 Sayville at +1 631-849-8238 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 Sayville at +1 631-849-8238 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 Sayville 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 Sayville at +1 631-849-8238.
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 Sayville at +1 631-849-8238 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 Sayville at +1 631-849-8238. 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 Sayville at +1 631-849-8238 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 Sayville on the perks of becoming a member.
Do you offer any add-on packages?
After booking your party, KidStrong Sayville 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 Sayville at +1 631-849-8238 for available add-ons and pricing.