Lythrania

Named after Lemuria's patron deity, their former capital city Lythrania lies beyond the surface of the Sanguine Sea. It is Lemuria's biggest pride. The city was gifted to them by the powerful dragon Laphiss, back in the day when dragons still roamed within the realm. With her powerful magic beyond any mortal's comprehension, she casted a magical barrier which made the city inhabitable for Lemuria's people. The entrance to Lythrania is a large door, always guarded, leading to an underwater tunnel. At its end lies the small city. Instead of the sky, you're greeted with sun rays shining through the sea's surface and schools of fishes swimming behind the barrier.