The Cenarian Ocean surrounded the South and West of Kusha. Cenarian explorers had colonised a far off continent to the South-West, dubbed Terra Vespum.
The area now called the Cenarian Ocean is everything South of The Boiling Sea. Since The Change and the rise of The Forbidden Ones, the ocean often spawns terrible storms that shatter any ships too far out from The Remnants or Yarin. No whales or dolphins have been seen in hundreds of years, instead the sea is full of weird monsters and even the occasional kraken, or Sea Elf war band.
No one has managed to reach Terra Vespum and return, there is no way to know how that far off land has been affected by The Chanage or The Scouring.