Indoor Playground

Jumpin Jax

★ 3.7 (141 Google reviews)

Paramus, NJ

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About

Know before you go that this is a preschool first. The building runs an early-learning program for children from six weeks to pre-K, and a good share of the reviews are from parents of enrolled pupils rather than from anyone who walked in to play. The playground is real and genuinely open to the public — walk-ins, no reservation needed — but on a weekday morning you are a guest in somebody else's nursery, and it feels like it.

The play space is better than that makes it sound: two separate playgrounds across three zones, a jungle gym, a dress-up corner, a pretend market, Legos, air hockey and a large toddler area, with a cafe that parents genuinely work from. Several describe settling in with a laptop while a child gets on with it.

The rating is the lowest on this page for a reason, and the complaints cluster on upkeep rather than on people. Broken toys that stay broken. Carpets that a visitor found smelled strongly of urine. Most seriously, a parent in 2025 whose child was cut by the sharp cut end of a replacement zip tie on a climbing structure, and who got no reply to a follow-up email. There is also a card surcharge that surprises people at the till.

Toddler areaCafé on siteSocks requiredAges 3–6Hosts parties · per listingsSensory hours · Not yet verified

Admission

From $18 per child
$5 per adult
$13 under 1

from venue website, Aug 2026

Toddler $13, Child $18, Adult $5. Socks required (no shoes on playground and cafe). Walk-ins accepted, no reservations required. Temperatures taken before entering. Hand sanitizer for all guests. Waiver required.

Birthday Parties

$599 package

2 hours · Private room

from venue website, Aug 2026

Per-person and package pricing shown as the venue quotes it.