Isla Incahuasi, Inkawasi[1][2] or Inka Wasi[3] (Quechua Inka Inca, wasi house,[4] "Inca house") is a hilly and rocky outcrop of land and former island in Bolivia situated in the middle of Salar de Uyuni, the world's largest salt flat, at an elevation of 3,656 meters (11,995 ft).