Kids at a birthday party in Mountainside

Mountainside Birthday Parties

Themed adventure parties for all the things your kids like, right here in Mountainside.

We Come To YouYour Yard Or A Park 20+ ThemesTo Choose From We've Done 66Parties In Mountainside

Super Mario, Avengers, Harry Potter, and Pokémon are the Mountainside themes we run most. The party is in your yard, or we use the grass at Echo Lake if you need the space. We bring the games, puzzles, props, and adventure guides.

What A Party Includes

Special Local Pricing

$425$399

One hour, up to 12 kids. A $50 deposit holds your date and comes off the total.

Book Now

How Many Kids

Up to 12 children included, $14 for each extra. We can usually host up to 25 if the space allows.

What's Included

Adventure guides, fun themed games that get the kids moving, plus props and puzzle boxes.

*Favors, food, and decorations stay with you.

Where It Happens

Most Mountainside parties happen in the backyard. Echo Lake Park has fields, picnic spots, and room to spread out. The Echo Brook fields by Borough Hall and the Deerfield School fields also work. Watchung Reservation is right here if you want a bigger open patch.

Travel

Within 10 miles of Cranford, travel is included. We also run parties in Westfield, Summit, Berkeley Heights, and Scotch Plains. 10 to 20 miles adds $30.

What Parents Say

We used Goin' on An Adventure for my son's 4th birthday. He chose the Pirate Adventure. It was incredible! My son laughed and smiled the entire time. Jake was amazing with the kids: energetic, enthusiastic, and organized. He knows exactly how to keep the focus and attention of 4 year olds while still being silly and having fun.
Christine BarberaMountainside

We picked their Super Mario theme party and it was a HIT! They were so engaging with all the kids. The games were very entertaining. I will definitely be using them in the future.
Nancy Dos SantosMountainside

We hired Goin' on an Adventure for our daughter's 6th birthday party and selected the pirate fairy adventure. The kids had so much fun! It was very well planned and tailored to the age. All of the kids were fully engaged and loved it.
Tracy O.

The Mountainside Log

Parties We Have Run In Mountainside

Sonic

Henry's Sonic Birthday Party

Henry cared about the sentry towers more than the warmup race. We set those towers on the grass at Echo Lake Park. Once Eggman rolled in, the other kids brought him bombs. He did not leave that spot. He waited for one more to fall.

Book This Theme

Among Us

Lily's Among Us Birthday Party

Lily walked the whole group to a job on the far side of her Mountainside yard. Someone had already called a meeting. She made them look at the task first. They piled in after that, then she sent them back out. She wanted the ship to launch with the list actually done.

Book This Theme

Pirate

Isaac's Pirate Birthday Party

Isaac wanted the crossing more than the swords. We ran it on the Echo Brook fields. The kids fired a cannonball at the mast and raced back with the treasure while a guide tried to catch them. Isaac asked to run that stretch again. He went first.

Book This Theme

The Pirate Fairy

Everly's Pirate Fairy Birthday Party

After the first ship-to-shore run Everly asked to go back across. We were in her Mountainside yard, and a guide playing an octopus was still in the way. She waited, then went anyway. The rest of the hour she treated that crossing as her job and waved the others through.

Book This Theme

We change the kids' names when we write these up. Everything else is what happened.