Using solar power only, the catamaran "sun21" undertook the first motorized crossing of the Atlantic with solar power to promote the great potential of this technology for ocean navigation. The "sun21" arrived in New York City on 8 May 2007, 3 pm, having covered about 7000 sea miles. The journey of sun21 was made possible by the association transatlantic21.
After the activities in New York, the association donated the solar boat to the WWF Adena/Madrid. The Sun21, now called WWF Solar, has been touring Spain since summer 2010. Additional information about it's first trip for a campaign in Murcia from July 16th-26th is available here (Spanish only).
The crew of the sun21 was awarded by the Guinness World Records for the fastest transatlantic crossing made completely under solar power.