Look for the Hakone Sightseeing Cruise. The ride is free with your Hakone Free Pass; otherwise, buy a ticket (¥1,780 round trip) at the office in the terminal. A few ships of conventional design ply Lake Ashi; the rest are astonishingly corny Disney knockoffs. One, for example, is rigged like a 17th-century warship.
1–15–1 Shiroyama, Odawara, Hakone, Kanagawa-ken, 250-0045, Japan