The 5-Days Children’s Cultural Science Museum is Hiroshima’s city-run hands-on science center for kids. It sits in Motomachi, Naka Ward, beside Hiroshima Central Park and within walking distance of Hiroshima Castle. Local families come for its free exhibit floors, a detailed model railway, and a planetarium that draws school groups and weekend crowds alike.
The exhibit floors invite children to push, pull, and test things. Interactive stations cover physics, light, sound, and everyday technology, and staff-led demonstrations and workshops run on many weekends. The model train layout is one of the most popular stops, with miniature trains running through a landscaped diorama that keeps younger visitors watching for long stretches. Upstairs, the domed planetarium presents star shows and seasonal programs narrated in Japanese. The visuals work well even for visitors who don’t speak the language. The museum shares its block with the Hiroshima City Central Library, which makes the area a regular weekend outing for local families.
Visitor Highlights & Practical Info
Entry to the exhibit areas is generally free, and planetarium shows carry a modest ticket fee. Buy planetarium tickets early in the day, because popular weekend and holiday sessions sell out. The museum typically opens 9:00–17:00, closes on Mondays (or the following weekday when Monday is a holiday), and shuts over the New Year period. Confirm current hours and show times on the official website before you go. Weekday afternoons are quietest, after school field trips leave. From the Kamiyacho area, you can walk here in about 10–15 minutes. Afterward, pair your visit with Hiroshima Castle or a walk south to the Peace Memorial Park.
