Value Village ／ Saitama ／ Industry & Technology

Metropolitan Area Outer Underground Discharge Channel Ryukyukan（首都圏外郭放水路・龍Q館）

Kasukabe underground discharge channel. Its pressure-regulating water tank is called an underground temple, and it prevents floods in the Tokyo metropolitan area.

Checked on2026-09-03

FAQ

Can I visit without a reservation?
Do not assume walk-in access. Confirm the date, group size and purpose directly with the operator.
Can visitors see patented technology?
Not necessarily. A visible process is not proof of a patent; specific rights require a separate public-record check.
Is English-language support available?
Permanent English support could not be confirmed. Contact the venue early and arrange interpretation if needed.

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Visits and workshops

This place accepts visitors, according to the source below.

Source: https://ja.wikipedia.org/wiki/%E9%A6%96%E9%83%BD%E5%9C%8F%E5%A4%96%E9%

Always confirm availability, fees and hours with the facility before visiting.

Before you go

Patent and trademark information is limited to what public records confirm. Whether visits are accepted, and reservations, fees, photography and English support, can change: please check with the facility before you go.

Sources

More on this prefecture

Written by Value Village from public sources. Nothing here is reproduced from another site.