The Cave Cruiser is a docile member of the Naedocyte family. They seem to mostly just float around sucking up static charge from the surroundings, and being mostly oblivious to the happenings around it. Harmless.
— Miner's Manual Description
The Naedocyte Cave Cruiser is a passive creature found exclusively on Dense Biozone. It floats around aimlessly, occasionally raining a substance that has no effect.