Parties

The World's Greatest Birthday Parties

GymStars offers the best Birthday Party value in the area! Our parties are semi-PRIVATE, FULLY HOSTED events centered around the birthday child. We have many Party options to choose from. All packages include 15 kids with options for more!

Scroll to the bottom for the calendar of available parties.

Full Service 2 hour NOVA Party
2 Hour Customizable $N/A Please call for the Customizable Items (currently unavailable)
Double NOVA Full Service - 2 Timeslots (3 hr 15 mins total time) $N/A Our popular Party Package with more time! (currently unavailable)
Double Customizable - 2 Timeslots (3 hr 15 min total time) $N/A Please call for the Customizable Items (currently unavailable)
1 Hour Play Only (No Party Room) $N/A No Food or Party Room access (currently unavailable)
Our most popular packages is our full service 2 hour NOVA party where everything is provided for you! This party allows you to be the parent instead of the party planner. Your party will start with an hour of fun, fun, fun out on the gym floor doing activities that include but are not limited to…

Obstacle courses

Relay races

Pit play

Bounce house

Super swing

Trampoline

And group games

Obstacle-Course

…all of which are run by two birthday party coaches. This will be followed by an hour in the party room, where you can sit back and relax while those two coaches handle everything from serving food and cutting the cake to making a gift list for your child’s thank you cards. Your party will also include…

Decorations

Set up

Clean up

Digital invitations

Customized digital thank you cards

Capri Suns

Ice cream

Paper plates/napkins/forks

Party favors

A party picture emailed to you

T-shirt for the birthday child

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Our parties are extremely customizable and we pride ourselves in taking the time to understand what you want from a birthday party and figuring out how to deliver!

After all, it's the child's day...not ours. So lets make it special for them and give them a party to remember!

Every party type is designed for up to 15 kids (but can accommodate more) and includes 2 party experts leading the party, a coordinator to ensure quality, decorations, and a T-Shirt for the birthday child.

Add a Theme!

Operation Dart Storm: Transform your party to an Operation Dart Storm Party for only $40.00 more. ODS parties include games and activities for participants using Nerf branded foam dart guns (not included). Package includes Darts (all darts are considered GymStars' property and are reused for multiple events). Participants must wear eye protection (glasses, goggles) to participate in Nerf activities. GymStars does not provide or have eye protection available.

Jedi Training Party: Your padawans come and learn the ways of the Jedi! Participants come dressed in their favorite Star Wars attire. Using our unique setup we will put them through a boot camp style program encompassing: "Low Gravity" training (Bounce House); "Swamp Survival" (Pit relays); and "Imperial Escapes (obstacle course). Included with the Jedi Party is a basic Lightsaber, combat instruction and the completion of the party each padawan receives a certificate of completion and their own Lightsaber! Add the Jedi Theme for only $50! (includes 1 lightsaber for each participant up to 15. $4.00 per lightsaber for each additional).

Super Bounce: Bounce house and trampoline will be used during play hour! Participants get to enjoy our Tiki bounce house, Clubhouse bounce house, and tumble trampoline as the primary activities. Add this package for $100!

Modesto GymStars Birthday Invitations:

Get our Invitations by downloading the PDF's below!

Book your Birthday Party online!

Click on the time slot you want to book and fill out the form completely.
Make sure to "log in" if you already have a GymStars account.
Our customer service staff will call you within 48 hours to follow up on your reservation request