What is "drua"

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 windward. The main differences compared to other Pacific proas, are that the hulls have a symmetric U-form profile, and a second hull is used instead of an outrigger. When a float (ama) is used in place of the smaller hull, the craft is called a Camakau (or Tamakau).

"The Fijian double canoe (wangga ndrua) was the largest and finest sea-going vessel ever designed and built by natives of Oceania before contact with europeans."

Druas were large, up to 30 meters long, and could carry more than 200 people. Despite being called "canoes" they were not dugouts, but plank-built ships.