Indoor activities for kids in New Castle County
When you need to be inside — cold, rain, or just a long afternoon — this is the New Castle County list. Hands-on museums, an ice rink, indoor play, and the libraries that quietly save the day. The age ranges are our suggestions; confirm hours and admission with the venue, and check the calendar for skating sessions and story times.
1. Delaware Children's Museum
Wilmington
The Riverfront's indoor playground for toddlers and preschoolers — the default when you need to be inside.
2. Delaware Museum of Nature & Science
Wilmington
Dinosaurs, the Nature Nook, and a hands-on Discovery Gallery — holds a wider age range than most indoor options.
3. Delaware Art Museum
Wilmington
A walkable art museum with Kids' Corner and monthly family art days — calmer than the big-city museums.
4. Fred Rust Ice Arena (UD)
Newark
UD's ice complex opens for public skating on select dates, not every weekend — check the schedule first. The run between Christmas and New Year's is the busiest stretch.
5. Natural Nest Play Cafe
Newark
An indoor play café in Newark — two-hour open-play blocks for little kids, snacks and Wi-Fi for the grown-ups. Grippy socks required for kids. Good for the under-5 crowd on a cold morning.
6. Urban Air Adventure Park
Christiana
Trampolines, climbing, ropes and go-karts under one roof in Christiana — the energy-burner for bigger kids. Urban Air socks are required and height rules vary by attraction.
7. Brandywine Hundred Library
Wilmington
Free story times inside Talley Day Park — every NCC library branch is worth knowing as the no-cost indoor backup.
Questions parents ask
What are the best indoor activities for toddlers in New Castle County?
The Delaware Children's Museum is built for under-7s, and an indoor play café like Natural Nest works for the youngest. Your local library's story time is the free fallback.
Are there free indoor options?
Yes — public library branches are free, and most run story times (check the branch calendar). The Delaware Art Museum is free for everyone Thursdays 4–8 PM, April–December, and always free for kids 6 and under. The other museums and the rink charge admission; see each place's page for current pricing.
Get the good ones before they fill up
One countywide shortlist every Friday morning, with ages, cost and logistics on each pick. Free.
More guides
Checked against each place’s current info.
Admission and hours come straight from each place’s guide. Last reviewed October 23, 2026. Confirm anything dated on the source before you go.