Minato Science Museum
港区立みなと科学館
Toranomon, Tokyo · near Kamiyacho (Tokyo Metro Hibiya Line, exit 4b) (5 min walk)
A calm, free hands-on science museum in Toranomon, built around the city, nature, the sea and the human body — and, unusually, sharing a building with the Japan Meteorological Agency’s Weather Science Museum upstairs. Two science museums, one lift.
Why children love it: The permanent exhibition is free and tactile — buttons to press, models to build, and a proper planetarium under the same roof.
What children actually do: Explore free hands-on exhibits about the city, nature and the sea, then (with a separate ticket) watch a planetarium show; an English-language planetarium program runs about once a month on a Saturday.
Honest drawbacks: The planetarium is separately ticketed and the English-language show is monthly, not daily — check the schedule before you build a visit around it. Strollers can’t go into the planetarium hall.
How comfortable will an English-speaking family be?
Full English website and leaflet; the general exhibits are hands-on and easy to enjoy. One English-version planetarium show runs about once a month on a Saturday — not daily. English-speaking staff not confirmed.
See the English resource ↗- Best for
- Primary (5–11), Teens (12–17)
- Time to allow
- 2h
- Opening hours
- 9:00–20:00 (last entry 19:30). Closed the 2nd Monday of the month (open on other Mondays) and 29 Dec–3 Jan.
- Price
- Free
- Booking
- Usually walk-in
- English
- ★★★★☆
- Indoor / weather
- indoor · rainy-day ok
- Confidence
- Verified
Why this is under the radar
It has a solid official English site but very little independent English family coverage, and its two-museums-in-one-building pairing with the JMA Weather Science Museum is rarely explained in English.
Getting there: 3-6-9 Toranomon, Minato — the same building as the JMA Weather Science Museum (2F).
Accessibility & prams: Lift-served; wheelchair viewing spaces in the planetarium. Strollers aren’t permitted inside the planetarium hall.
Sensory & intensity: The planetarium dome is dark and reclined — some young children find the darkness unsettling.
Planning tip: Do both science museums in one lift-served building — allow a half-day if you add a planetarium show.
Pairs well with
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