Date/Time : 3rd July / 17:30 start
Place : KEKB control building
Fee : 2,000 yen for alcohol / 1,000 yen for soft drink
This is a collaborative party with KEKB people.

An automatic email is sent to you once you've done a Dorm reservation, but also, you need to access your own portal site for checking your room availability.
NB: The room number is fixed in the early morning of your check in day.

https://ganko1.kek.jp/uskek.jp/ui/UI_00000E.do
1) log in to the above web site with your ID (email address) & your changed password.
2) "usage confirmation"-->"1. Lodging & traveling----"
3) (main page) click your "reservation No."
4) your booking status & room number appear.
NB: You take a room key from Dorm caretaker (∼22:00) or KEK information center (22:00∼).

The payment counter is not at the Dorm, but Users Office which is in a building called "KEK International Center".
http://www.kek.jp/RSO/eng/documents/kek_map.pdf
  #55 : KEK International Center, #18 : Dorm
  #1 : KEK gate&information center
  #11 : meeting venue, Building no. 3
Credit card is available.
(single with bath : 2,000 yen, single without bath : 1,500 yen / night)
*single without bath : you use a public shower space.

https://ganko1.kek.jp/uskek/ui/UI_00000E.do
1) log in with your ID & password
2) "Procedure for Applying"-->"1. Registered Experiment"
3) (main page) "Detail & Procedure"
4) Applocation for Wireless LAN adapter account (Tsukuba Campus)

Your PC information is sent online.

Credit card is available whichever you are staying in KEK Dorm or Urban hotel, but you'd better bring some CASH for taking a bus, taxi, and also for having meals!

If you need an entry visa to Japan, please apply at your closest Japanese Embassy or Consulate well ahead of the workshop. You can find more information about entry visa at; http://www.mofa.go.jp/j_info/visit/visa/index.html

http://www.jref.com/practical/transportation_tokyo.shtml