|Type||Ocean/Body of water|
|Location||West of Tortall and Eastern Lands|
|Islands|| Yamani Islands|
|Bodies of water|
|Marine Life|| Merfolk|
Other sea life
|Patron God|| Oinomi Wavewalker|
Great Mother Goddess
|Port Cities|| Port Legann|
|Head of State|
|Tortallan Universe place|
|First Appeared||Alanna: The First Adventure|
|Latest Appearance||Trickster's Queen|
The ocean lies to the west of the Eastern Lands; Tortall, Scanra, and Carthak all have considerable coastline on the Emerald Ocean. There are lands on the west of the Emerald Ocean beyond Jindazhen. The Copper Isles and the Yamani Islands, two archipelagic nations, are located on the Emerald Ocean.
The ocean has fish, whales, and other marine life There are also krakens, monstrous sea beasts that target ships. Due to the reopening of the Divine Realms, there are also merfolk and other mythical sea-dwelling creatures.
Oinomi Wavewalker is the great god of the Emerald Ocean, and it is one of her territorial designations. People believe she likes bright colors and shiny things, so humans who live near the ocean—like in Port Caynn in the 3rd century—will paint their dwellings bright colors to please her.