Riverside Kids Mansfield/Hackettstown N.J.

06/13/2026

BIG SUMMER SAVINGS AT RIVERSIDE KIDS!☀️

Looking to throw an unforgettable birthday party this summer? For a limited time, enjoy $150 OFF our Giant and Mega Party Packages!

From exciting playtime and private celebrations to pizza, decorations, and memories that last a lifetime, Riverside Kids Gym is the perfect place to celebrate your little one's big day.

🎉 Valid for parties held between July 1st and August 31st.

For more information visit our website: www.riversidekidsgym.com/birthday-parties/

Summer birthdays just got even better ☀️🎉

Book a Summer celebration scheduled between July 1st and August 31st and receive $150 off

Stress free parties, unforgettable memories, and everything handled for you🥳

Book your party today at www.riversidekidsgym.com

06/12/2026

🚧 Built for fun! 🚜
We loved celebrating with this Mega construction-themed birthday setup. The custom banner by Jazzedup.creations was the perfect finishing touch! 🦺

06/09/2026

Riverside Kids will be closed today, June 9th!

06/03/2026

The cutest setup for the cutest Baby Shark! 🦈💓✨

We had so much fun bringing this adorable theme to life and celebrating a very special birthday!

A huge thank you to Jazzedup.creations for creating this absolutely amazing custom banner!

05/24/2026

In honor of Memorial Day, Riverside Kids Gym will be closed on Monday. We hope everyone has a safe and meaningful holiday weekend with their families.

05/19/2026

So many fun Giant Package celebrations this past weekend! From Super Mario adventures to dinosaur fun and a sweet Gabby’s Dollhouse party, it was a weekend full of nonstop memories at Riverside Kids! 🎉

Don’t forget! Our Summer Birthday Party Sale is officially here ☀️ Book a celebration happening between July 1st–August 31st and receive $150 off our Mega & Giant Packages! Visit www.riversidekidsgym.com to book your party today!

05/19/2026

A prehistoric party done right 🦖✨ We loved creating this Jurassic Park Mega package party for a special birthday boy!

05/12/2026

Unfortunately, we will be closed this afternoon. We apologize for any inconvenience this may cause and appreciate your understanding!

05/04/2026

May the 4th be with you 💫 There was no better way to celebrate than with Darth Vader himself! We had an out of this world time yesterday!🌌✨
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Thank you to for bringing the magic and making the day so special!