You need to make the reservation on your own, i.e. all contact (reservations, cancellations etc.) must be made directly with the hotel.
In Zeuthen we recommend:
Seehotel Zeuthen
www.seehotel-zeuthen.de
Fontaneallee 27/28, 15738 Zeuthen
Phone +49 (0) 33762 890
info@seehotel-zeuthen.de
It's a 15-20 minute walk from DESY to the hotel.
Please metnion "DESY guest" with your reservation.
They offer a shuttle to S-Bahnhof Zeuthen and Wildau.
You also can stay in Berlin and travel by public transportation to Zeuthen.
