An immersive kids' discovery space above the Biane Library — climb Cucamonga Peak without leaving the second floor.
The Randall Lewis Second Story and Beyond takes up the second floor of the Paul A. Biane Library and turns it into a kids' discovery museum: an indoor Cucamonga Peak climb, an Adventure Zone, a Creation Station, Spectacular Senses, an Art Studio, and a STEM Lab. It's the most ambitious thing the city's library system has built, and kids treat it accordingly.
It's ticketed, not free like the library downstairs: $15 for ages 1–17, $16 for adults, $13 for seniors, and under-ones free. One policy worth knowing before you plan around it: adults are not admitted without a child. This is a space for kids, and they enforce it.
Now the caveat that earns this site its keep: as of July 2026, their own posted hours conflict with each other depending on where you look. Call before you go — it's a five-minute call that can save you a wasted trip with a car full of kids.
Nearby & related
Attractions
Paul A. Biane Library
The city's flagship library at Victoria Gardens: free tutoring, study rooms, and a Library of Things.
Arts & Culture
Lewis Family Playhouse
The city's professional theater for families inside the Victoria Gardens Cultural Center — now with a permanent outdoor stage.
Shopping
Victoria Gardens
The 147-acre open-air center that functions as Rancho Cucamonga's de facto downtown.