1. Genius Gems

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Millburn, NJ

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Genius Gems

4.8 (20 reviews)
Closed • 10:30 am - 5:30 pm

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we enjoyed the place so much today. it is a one big room but theres a lot to do ( including slime / tile making). the space and magnets are super clean and the staff members are very friendly and helpful. parents are welcomed to relax in the small cafe while watching their kids play. we will be back!

Make your own slime!!!

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2 years ago

Helpful 11
Thanks 3
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4 years ago

Updated overall rating as I think this is more fair on the whole. I know there are a variety of factors for their cost and rule structure

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7 years ago

Helpful 4
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2 years ago

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4 years ago

Helpful 0
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2 years ago

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Jennifer R.

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7 years ago

Helpful 1
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3 years ago

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3 years ago

I loved bringing my two boys to Genius Gems. It kept them happy and engaged for hours. It was such a fun activity for our whole family.

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Photo of Alan G.
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7 years ago

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3 years ago

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4 years ago

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4 years ago

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7 years ago

Helpful 2
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7 years ago

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5 years ago

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5 years ago

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7 years ago

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7 years ago

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5 years ago

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Review Highlights - Genius Gems

“The recommended age range is 4-12, but my under-3 toddler had a great time as we play with Magnatiles at home and he loves them.”

Mentioned in 2 reviews

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Hiya Pal - Best bathroom ever complete with diapers organized and labeled by size

Hiya Pal

5.0(1 review)
9.2 mi

This is the perfect place for children and babies age 4 and younger. The owner of this place really…read morehas an eye for detail that is rare for an indoor playspace. First off she provides bibs hanging in the eating area to use as we all know kids get food everywhere on them at this age. The bathroom has several sizes of attached seat covers so newly trained kids can easily use the toilet, a changing table- and most of all, free diapers organized and labeled by different sizes! This is unheard of but such a lifesaver. Now for the playspace itself. It's new, clean, well laid out with lots of options including a book room, painting and drawing table, slide with climber, dolls, play kitchen and various other small movement items. The painting area is also very well organized and labeled. It's never been too crowded and I've gone twice on weekends. Only bummer is lack of parking but you can park in the Burger King Parking lot if there are no spots behind the building. Reservations recommended but not required.

From the owner: Hiya Pal! is an indoor playspace cafe for children ages 5 and under, serving as a hub for parents,…read morecaretakers, and little ones to meet, play, and socialize. Our space offers open-ended creative and sensory play to enhance imagination, coordination, and communication. Our designated infant area supports tummy time, rolling, and gross motor skill development. We provide Open Play, Memberships, Mommy + Me classes, Story Times, Private Playdates, and small Birthday Parties.

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Hiya Pal - Indoor Playspace Cafe for ages 5 and under. We host classes, specials events, playdates and parties.

Indoor Playspace Cafe for ages 5 and under. We host classes, specials events, playdates and parties.

Hiya Pal - Indoor playspace for ages 5 and under. Sensory friendly. Gross and fine motor development.

Indoor playspace for ages 5 and under. Sensory friendly. Gross and fine motor development.

Hiya Pal - Back left area with sensory play items

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Back left area with sensory play items

South Mountain Fairy Trail

South Mountain Fairy Trail

4.7(29 reviews)
0.4 mi

Millburn, NJ - This is such a sweet little trail! I have been wanting to do it for a long time and…read morefinally came here with my family just before Christmas when we were in the area. It's winter time so there was hardly anyone (and no problem getting a parking spot obviously), but the fairy houses are just as magical in a snowy setting. They are each unique and fun to come upon and discover along the half-mile path. The trail is flat, easy to follow, and fun with little ones. Our toddler enjoyed the hike (snow hikes are his favorite) and examining the houses, looking for fairies. Adults who are young at heart or seek delight, whimsy, and the unusual will find this trail enchanting too! It's located on the southern tip of South Mountain Reservation which has plenty of other trails, and is close by the Turtle Back Zoo and the Regatta Playground.

STEPH JUDGEMENT: A fun, homespun art experience along a beautiful walking trail…read more We were staying with some friends in the area, and while perusing Google maps I noticed this spot, which sounded fun. Our friends knew about it and said they hadn't been since their kids were little, but were game to take us. It started out as a guerilla DIY art project by a local guy but has since become an official part of the beautiful South Mountain Reservation park. It's basically a bunch of adorable handmade fairy houses along a walking trail. Different people contributed to the trail, but at some point new additions were forbidden. Some houses were dilapidated, and I'm not sure how they're maintained (if at all), but there were enough houses to make for an enchanting stop.

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South Mountain Fairy Trail - Hello little gnome!

Hello little gnome!

South Mountain Fairy Trail
South Mountain Fairy Trail

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Genius Gems - indoor_playcenter - Updated November 2026

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