[1] It features two fin tails which absorb wave energy and generate thrust by moving up and down with the motion of the boat.
On March 16, 2008, then 69-year-old Japanese sailor and environmentalist Kenichi Horie left the Hawaii Yacht Club, Honolulu, in Suntory Mermaid II, bound for Japan.
[4] The 9.5 metre (31-foot), three-ton yacht used wave energy to move two fins at its bow and propel it forward, sailing at an average speed of 1.5 knots.
After arriving in Wakayama, Horie sailed on to his home harbour in Nishinomiya, where a homecoming ceremony was held.
Suntory Mermaid II was powered by single solar battery and made from recycled materials.