Minecraft wiki entry for Cave, associated text: A world full of cheese caves.
The start of a spaghetti cave.
A spaghetti cave winding through the underground.
An X-ray view of a spaghetti cave.
Pillars in a noise cave.
Stone speleothems in a cave.
A noise cave with varying sizes of speleothems.
A noise cave with thick, clustered pillars.
A more open cave with narrower pillars.
Tall pillars in a cave.
A noise cave below Y=0.
A deepslate pillar in a noise cave.
Multiple ores, found in the new big cave.