A new type of traffic terminal has been constructed at Yokohama bay recently. It is composed of 2-storied house on a floating pontoon and moored by pile-fender system. There are ticket counter and waiting lounge on the first floor and restaurant on the second floor. Since the floating type was applied to the passengers terminal station for the first time in Japan, We examined the relation between comfortability and motion of the terminal. Several interesting results, such as people who are easy to get seasick have tendency to estimate the motion of the structure excessively, are obtained.