SSTH Ocean Arrow is a super slender twin hull (SSTH) car ferry operating in Japan.
Prof. Hideaki Miyata at Tokyo University developed the SSTH, a high-speed catamaran-hulled boat, as a joint work with IHI Corporation.
The trip takes about 30 minutes, or about half the time that it had previously taken.
Despite their prevalence in Europe, previous attempts to bring a fast ferry to Japan had failed due to wake wash and wave damage in the Japanese coastal areas.
In Ireland, a swimmer was drowned in one instance which was thought to be caused by wake wash from a fast-moving ferry.