The meeting will be held in two cities, Amsterdam and Utrecht. The train ride between the two is only 30 minutes.
For those of you who choose to stay in Amsterdam, a bus will take you to Utrecht and back on Friday the 10th.
If you want to travel by train, you can find the timetables here: www.ns.nl (make sure you select Amsterdam Centraal and Utrecht Centraal).
Whether you choose to stay in Amsterdam or Utrecht, make sure to book your hotel ahead of time, because it will probably be very busy in June.