The Hawaiian outrigger sailing canoe called Hokule'a (ho-koo-LAY ah) just started a round-the-world voyage, navigated by only using the stars, sun and moon, ocean currents and so forth, like the ancient Polynesians did centuries ago.
www.hokulea.com
Best wishes to the crew!
Okay, I don't know why the link is not working, but it's simple enough to type in.