Great Sea

From wow.incgamers.com

The Great Sea is the sea that spans between Kalimdor and the Eastern Kingdoms. It also has a great span of water between the continent of Azeroth (as opposed to the World or Kingdom) and Lordaeron.

In the great sea you will find:

• The Maelstrom - The epicentre of the Sundering for what used to be the Well of Eternity
• Kul Tiras - Human Kingdom
• Undermine - Goblin home
• Hiiji - Southsea Pirate headquarters

You can see the great sea on the Maps of the world of Azeroth.