So this is pretty fascinating - what may be the first ever circumnavigation of the globe in a Polynesian voyaging canoe!
Quote
(https://ichef.bbci.co.uk/news/624/cpsprodpb/14CFB/production/_96534258_hokulea_kualoa.jpg)
A traditional Polynesian voyaging canoe has returned to Honolulu in Hawaii, completing the first-ever round-the-world trip by such a vessel.
The boat, the Hokule'a, took three years to journey around the globe. Its crew navigated without modern instruments, using only the stars, wind and ocean swells as guides. They aimed to use the same techniques that brought the first Polynesian settlers to Hawaii hundreds of years ago.
http://www.bbc.co.uk/news/world-us-canada-40316930
That's actually quite amazing.
Yes - impressive what can be done with the technology! :)