1) Sailboat type 
Drua, also known as Na Drua, N`drua, Ndrua or Vaka Tepu (sacred canoe), is a double-hull sailing boat that originated in the south-western Pacific islands. Druas do not tack but rather shunt (stern becomes the bow and vice versa). Both ends of each hull are identical, but the hulls are of different sizes and the smaller one is always sailed to wi....