Museum · Ariake / Odaiba

Tokyo Water Science Museum 東京都水の科学館

A free, kid-friendly Tokyo Metropolitan Government museum in Ariake about where the city's tap water comes from, with interactive water play and a guided tour into a real underground water-pumping facility.

About

Run by the Tokyo Bureau of Waterworks, the Water Science Museum explains the journey of Tokyo's water from the forests of the Tama River headwaters to the tap. The ground floor 'Aqua Forest' sets the scene with a projection-mapped forest, the second floor has hands-on experiments with pressure, flow and fountains, and the third floor tells the story of the water supply from Edo-era wooden pipes to modern purification. The highlight is the guided tour into the basement of the connected Ariake Water Supply Station, where you see the huge pumps and pipes that supply the waterfront district. Science shows and free workshops run on weekends. It is a short walk from Tokyo Big Sight and pairs easily with an Odaiba day.

Highlights

• Guided tour into a real underground water-supply pumping station
• Projection-mapped Aqua Forest on the ground floor
• Hands-on water experiments for kids
• Edo-period wooden water pipes and history exhibits
• Free science shows on weekends

Tips

• Free and seldom crowded, great for families on a budget.
• Ask at reception for the next pumping-station tour time (Japanese-led, but visually impressive).
• Combine with SMALL WORLDS TOKYO, a 10-minute walk away.

Open in Google Maps · Info checked 2026-10-09

Nearby

• Tokyo Rinkai Disaster Prevention ParkPark · 60 m away
• Coin Lockers · Kokusai-tenjijo Station (Tokyo Big Sight)Luggage Storage · 200 m away
• Symbol Promenade ParkPark · 230 m away
• Ariake Tennis no Mori ParkPark · 430 m away
• Tokyo Big Sight · Coin LockersLuggage Storage · 450 m away
• Tokyo Big SightPhoto Spot · 500 m away
• SMALL WORLDS TOKYOMuseum · 560 m away
• Ariake Shiki TheatreShows & Entertainment · 600 m away