#phantom leviathan

I call it,"the breeding grounds"

if you go down deep enough in the void (1600m) then you will find a hole that leads to a dimly lit cave system. The only life there are phantom and gargantuan leviathans. Gargantuens lay there eggs in the soft sand like bottom (which is 1892m so the player has to swim in super Predator territory to scan the eggs) while phantoms lay in cracks of the walls. The only plant life are the few wither trees,which are the only source of light.