The Gulf of Aro is located on the southern edge of Erilea, between Melisande, Eyllwe, and The Deserted Land.  It is jade green in color.  

• Aelin takes a ship from Innish, Melisande to travel across the Gulf of Oro to The Deserted Lands in The Assassin's Blade.

• Yrene takes a ship from Innish, Melisande to travel through the Gulf of Oro to the Southern Continent.