Watarase Retarding Basin Walking：渡良瀬遊水地ウォーキング

Watarase Retarding Basin (Watarase-yusuichi) is Japan's largest flood-control and water-storage detention basin, located roughly 60–70 km north of Tokyo where Tochigi, Ibaraki, Gunma, and Saitama prefectures meet. (from Wikipedia, etc) I'd like to walk around this basin while watching for wild birds and other wildlife. In case of rain or bad conditions, it may be canceled.

Watarase-yusuichi
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1. Walking Course
Yagyu Station(柳生駅) 10:00 -- 10:30 Watarase-yusuichi(渡良瀬遊水地), lunch 14:30 -- 15:00 Yagyu Station(柳生駅)
2. Walking Distance & Time
Walking distance : 11.0km
Walking time : approx. 4.0hours
3. Meeting Time and Place
10:00am at the ticket gate of Yagyu Station on Tobu-Niko Line(東武日光線柳生駅改札口)
4. Cloths and Belongings
Walking shoes, Rain gear, Hat/Cap, Sunglasses, Sunblock, Lunch/Snack, 0.5L Water, First-aid kit, etc.
5.Participation Fee
As part of Meetup.com subscription fee : 500Yen
6.Notes
Anyone is welcome, regardless of age.
Be sure to update your RSVP when changing your attendance.
Do Not use bear bells, since it sounds like noise for some people.
If this event is cancelled, it will be posted on the message board by noon the day before.