首都圏外郭放水路見学会 Metropolitan Area Outer Underground Discharge Channel Tour

***EARLY RESERVATION RECOMMENDED TO JOIN THE OFFICIAL TOUR***

To join this event please see below and send me a message on LINE. Without this, you will not find out our meeting point. EVERYONE needs to do this EVERY TIME, including those who have participated with me previously.

***Discounted event fee (¥500) for early applications. See below***

Because low-lying Tokyo is vulnerable to flooding during the rainy and typhoon seasons, authorities built the world's largest underground flood diversion facility to mitigate any potential disasters.

Check out this super-informative video

There will also be a trip to Tobu Dobutsukoen afterwards. Participants for this event can join for free.
Please click the link above and register your attendance.
There will be a ¥500 charge to be refunded on the day.

◾️After you have applied to join this event, please contact Mark via the Line application quoting your FULL NAME and this message: [Underground Discharge Channel Tour - 20th September] MARK's LINE ACCOUNT
If you would like to bring a guest, please ask me via Line.

◾️参加されるイベントの名前(フルネーム)と日付を付けてマークにLINEしてください。
例:[Underground Discharge Channel Tour - 20th September] MARK's LINE ACCOUNT
定員の都合上、お連れ様がいる時は事前にLINEでご相談ください。

We will meet at Minami-Sakurai station at 10am. Please kindly ensure you arrive punctually. There is a Tobu Urban Park Line train departing Kasukabe station at 9.49am, arriving at Minami-Sakurai at 9.56am.

Please understand we will then have to walk 30 minutes, so we will not wait for latecomers. If you are late, you will need to take a taxi.

We will join the Underground Temple Course from 11-11.55am. The tour cost is ¥1000, and you are responsible for making your reservation - bookings are available 1 month in advance, so from 20th August.

One of the world's largest underground discharge channels was built to protect low-lying areas in eastern Saitama prefecture from flood damage, which heavy rains have repeatedly flooded.

A large-scale flood control system takes swollen water from small and medium-sized rivers such as the Naka-gawa underground. Then, it discharges it into the Edo-gawa through a 6.3 km-long tunnel.

The rising river water is fed into the pressure control tank through an overflow dike on the river bank, a shaft like a massive cylinder (connecting the ground and underground), and a tunnel 50 meters underground.

Then, finally, it is discharged into the Edo River using a vast pump at the back of the tank. The pressure control tank is 177 m long, 78 m wide, and 18 m high, with 59 pillars supporting the ceiling. It is also known as the "Underground Temple of Disaster Prevention" because it resembles a giant temple.

The facility is usually in operation only a few times a year, and tours are offered on days when the facility is not in process.

Event fee:
¥500 - limited to the first 7 applicants (make sure you contact me on LINE immediately!) - prompt payment is essential to guarantee this reduced fee.
¥1250 if you pay by 19th September early evening (PayPay, or in cash at an earlier event).
¥1500 in cash on the event day (20th September) - please bring the correct money (see the NOTE below).
Please note that free admission to the Tobu Zoo event is only for prepayments - see above.

If you don't have PayPay, please ask a friend or coworker to do the transaction for you (give them cash!).

Cancellation policy:

• Full refund given if cancellation is notified BY LINE MESSAGE at least 36 hours before the event starttime.
• Reservation and then no-showing without prepayment requires full payment of the event fee via PayPay within 24 hours. Further non-payment will result in removal from the group.

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After the event, you may submit a review/evaluation. Please kindly rate appropriately as a low evaluation has an impact on the group. Things you should clearly understand in advance:

1. I (Mark) am not a tour guide. For many events this will also be my first time, and events are mainly organised based on intensive internet research.
2. Nature cannot be guaranteed, so flower festivals may be impacted by the recent climate.
3. We aim to depart on time, however bus schedules might change. This is unavoidable.
4. We request participants arrive EARLY. In rare cases we might wait a few minutes if we do not need to take a bus.
5. The number of participants is not guaranteed. However we will not have large groups.
6. The event finish time might be earlier or later than advertised. The hiking time might be longer/shorter than anticipated. Return bus times are not guaranteed.

How to calculate your review appropriately:
⭐️⭐️⭐️⭐️⭐️ (5 stars) = Everything was as described.
⭐️⭐️⭐️⭐️ (4 stars) = The event was generally ok, but there were a few things that you weren't happy with (please provide further details).
⭐️⭐️⭐️ (3 stars) = The event was disappointing (please provide further details).
⭐️⭐️ (2 stars) = The event was poor (please provide further details).
⭐️ (1 star) = The event was terrible (please provide further details).