Science
Tokyo Water Science Museum
A free interactive museum in Ariake exploring the water cycle, purification and everyday water use.
Facts
| Age | Preschool and elementary families |
|---|---|
| Fee | Free Admission |
| Duration | Allow 60–90 minutes, with extra time for the Aqua Tour |
| Language | Service is mainly in Japanese; confirm English or multilingual support |
| Hours | 9:30–17:00 (last entry 16:30); closed Mondays (next day if a holiday) and 28 Dec–4 Jan |
| Access | About 8 minutes from Tokyo Big Sight or 9 minutes from Kokusai-tenjijo |
| Booking | Individual entry needs no booking; collect a timed Aqua Tour ticket at reception on the day |
ExperienceHighlights
Ask for Aqua Tour and theatre tickets first, then plan your exhibits around the assigned times.
Allow roughly 60–90 minutes for exhibits, connecting drinking and handwashing with water treatment and supply.
- Free entry does not mean unrestricted access to every activity; the underground pumping facility is tour-only.
- Shows and tours include darkness and loud sounds; ask staff first if your child is sensitive to either.
Reviews
Highlights
My child repeated the experiments in our bath at home.
Seeing real water pumps and a reservoir made the visit very satisfying.
Drawbacks
I skipped spare clothes because it was winter, but my seven-year-old needed them: they got soaking wet.
On our visit, it started getting crowded after 10:30.
Frequently asked questions
Is admission or booking required?
Admission is free and individuals do not book. Collect a timed Aqua Tour ticket at reception on the day.
How long does a visit take?
The official estimate is 60–90 minutes. Allow extra time around your assigned Aqua Tour slot.
What should families know for a rainy-day visit?
Exhibits are indoors, but the 8–9-minute walk from either station is outside. Bring rain protection.
What facilities are there for families?
- Rainy days：Exhibits are indoors, but the 8–9-minute station walk is outside, so bring rain protection
- Toilets and nursing：Toilets and accessible facilities are available; ask reception about baby facilities
- Food：Avoid eating in exhibition areas and plan meals around nearby Ariake facilities
- Strollers：Stroller parking and coin lockers are provided; ask reception for current use guidance
Official information and access
Recheck current hours, prices and booking conditions on the official site before travelling.