A ferryboat Eastern Dream can take you from Japan to Vladivostok for 25.000 yens. You judge if it's worth paying so much...
Russian employees in the seaport speak not only Russian, but also Japanese, that is quite comfortable for tourists.
Besides people the ferryboat transports heavy cargoes such as cars, different details, instruments and mechanisms.
The ship has three passenger decks and also a restaurant, a bar, a night club, a karaoke, an internet room, a sauna and a swimming pool.