The Asura Ocean is the largest of Sahar's oceans and seas. It covers both poles (although these regions are covered with a thick layer of ice) and is bounded to the west by Miraria, Baredina, and Ystel, and to the east by Alpa, Nagu, and Boroso. It is <area> and covers <something>% of Sahar's total water surface, <something>% of Sahar's total area. Several seas lie to its west, the Ystel Sea, East Sea, and Saru Sea.
Arguably, Asura is the only true ocean on Sahar.