Worlds first Wave powered boat, Japanese master sailor and environmentalist Kenichi Horie waves from "Mermaid II", powered only by waves in March off the coast of Waikiki in Hawaii. Horie has completed a 110-day solo voyage across the Pacific Ocean in a boat propelled by wave power to claim another world first.

http://www.tsuneishi.co.jp/english/horie/about.html

http://www1.suntory-mermaid2.com/english/sm2_experiment.html

http://news.yahoo.com/nphotos/Japanese-sailor-Kenichi-Horie/ss/events/lf/070608japanesesailor