Lunia was a large mountain-island sparsely covered with citadels of white stone atop white cliffs with palaces of minor deities.
It was always night here, but the dark sky was full of silver stars collectively so bright that a moon was not needed to provide light, and the temperature was like that of a summer's night.
Most of the portal connections from other planes came into this layer. Some insisted that this was the only way to enter the greater plane. Most of those arriving by such a means found themselves plunging into A vast horizon full of salty holy water and land with drifting spheres of liquids, many with their own ecosystems and land. Tritons may use the upswells of the horizon sea to travel to these floating biospheres to indulge in their well-earned rewards.
The crashing of the waves on the shore in calm weather reminded some of chimes or the tolling of bells. During stormy weather, the sound was like that of thunder.
The Silver Sea contained all manner of sea life, from schools of tiny silver fishes, to Tritons, dolphins, and celestial whales, to giant creatures of the deep. In calm weather, some of these creatures could be heard singing songs of praise toward the archons. Those who could not swim were quick to be rescued by the zoveri and led to shore—assuming that they were not a kind of creature harmed by holy water!